diff --git a/lib/bcdice/game_system/SwordWorld.rb b/lib/bcdice/game_system/SwordWorld.rb
index 0fe88d638..eee765fd9 100644
--- a/lib/bcdice/game_system/SwordWorld.rb
+++ b/lib/bcdice/game_system/SwordWorld.rb
@@ -119,7 +119,12 @@ def rating(string) # レーティング表
 
           currentKey = (command.rate + round * command.rateup).clamp(0, keyMax)
           debug("currentKey", currentKey)
-          rateValue = newRates[dice][currentKey]
+          rateValue =
+            if dice > command.set_zero_val
+              newRates[dice][currentKey]
+            else
+              0
+            end
           debug("rateValue", rateValue)
 
           totalValue += rateValue
@@ -321,6 +326,8 @@ def rollDice(_command, _round)
       def getResultText(rating_total, command, diceResults, diceResultTotals,
                         rateResults, dice_total, round)
         sequence = []
+        critical_count = [round - 1, 0].max
+        additional_damage = command.add_damage * critical_count
 
         sequence.push("2D:[#{diceResults.join(' ')}]=#{diceResultTotals.join(',')}")
 
@@ -333,6 +340,9 @@ def getResultText(rating_total, command, diceResults, diceResultTotals,
         # rate回数が1回で、修正値がない時には途中式と最終結果が一致するので、途中式を省略する
         if rateResults.size > 1 || command.modifier != 0
           text = rateResults.join(',') + Format.modifier(command.modifier)
+          if additional_damage != 0
+            text += "+#{command.add_damage}*#{critical_count}"
+          end
           if command.half
             text = "(#{text})/2"
             if command.modifier_after_half != 0
@@ -343,6 +353,11 @@ def getResultText(rating_total, command, diceResults, diceResultTotals,
             if command.modifier_after_one_and_a_half != 0
               text += Format.modifier(command.modifier_after_one_and_a_half)
             end
+          elsif command.double
+            text = "(#{text})*2"
+            if command.modifier_after_double != 0
+              text += Format.modifier(command.modifier_after_double)
+            end
           end
           sequence.push(text)
         elsif command.half
@@ -357,6 +372,12 @@ def getResultText(rating_total, command, diceResults, diceResultTotals,
             text += Format.modifier(command.modifier_after_one_and_a_half)
           end
           sequence.push(text)
+        elsif command.double
+          text = "#{rateResults.first}*2"
+          if command.modifier_after_double != 0
+            text += Format.modifier(command.modifier_after_double)
+          end
+          sequence.push(text)
         end
 
         if round > 1
@@ -364,7 +385,7 @@ def getResultText(rating_total, command, diceResults, diceResultTotals,
           sequence.push(round_text)
         end
 
-        total = rating_total + command.modifier
+        total = rating_total + command.modifier + additional_damage
         if command.half
           total = (total / 2.0).ceil
           if command.modifier_after_half != 0
@@ -375,6 +396,11 @@ def getResultText(rating_total, command, diceResults, diceResultTotals,
           if command.modifier_after_one_and_a_half != 0
             total += command.modifier_after_one_and_a_half
           end
+        elsif command.double
+          total = (total * 2).ceil
+          if command.modifier_after_double != 0
+            total += command.modifier_after_double
+          end
         end
 
         total_text = total.to_s
diff --git a/lib/bcdice/game_system/SwordWorld2_5.rb b/lib/bcdice/game_system/SwordWorld2_5.rb
index 245c61f4a..d11631b21 100644
--- a/lib/bcdice/game_system/SwordWorld2_5.rb
+++ b/lib/bcdice/game_system/SwordWorld2_5.rb
@@ -34,18 +34,25 @@ class SwordWorld2_5 < SwordWorld2_0
 
         ・レーティング表の半減 (HKx, KxH+N)
         　レーティング表の先頭または末尾に"H"をつけると、レーティング表を振って最終結果を半減させます。
-        　末尾につけた場合、直後に修正ををつけることで、半減後の加減算を行うことができます。
+        　末尾につけた場合、直後に修正をつけることで、半減後の加減算を行うことができます。
         　この際、複数の項による修正にはカッコで囲うことが必要です（カッコがないとパースに失敗します）
         　クリティカル値を指定しない場合、クリティカルなしと扱われます。
         　例）HK20　　K20h　　HK10-5@9　　K10-5@9H　　K20gfH　　K20+8H+2　　K20+8H+(1+1)
 
         ・レーティング表の1.5倍 (OHKx, KxOH+N)
         　レーティング表の先頭または末尾に"OH"をつけると、レーティング表を振って最終結果を1.5倍します。
-        　末尾につけた場合、直後に修正ををつけることで、1.5倍後の加減算を行うことができます。
+        　末尾につけた場合、直後に修正をつけることで、1.5倍後の加減算を行うことができます。
         　この際、複数の項による修正にはカッコで囲うことが必要です（カッコがないとパースに失敗します）
         　クリティカル値を指定しない場合、クリティカルなしと扱われます。
         　例）OHK20　　K20oh　　OHK10-5@9　　K20+8OH+2　　K20+8OH+(1+1)
 
+        ・レーティング表の2倍 (DBKx, KxDB+N)
+        　レーティング表の先頭または末尾に"DB"をつけると、レーティング表を振って最終結果を2倍します。
+        　末尾につけた場合、直後に修正をつけることで、2倍後の加減算を行うことができます。
+        　この際、複数の項による修正にはカッコで囲うことが必要です（カッコがないとパースに失敗します）
+        　クリティカル値を指定しない場合、クリティカル値10と扱われます。
+        　例）DBK20　　K20db　　DBK10-5@9　　K20+8DB+2　　K20+8DB+(1+1)
+
         ・ダイス目の修正（運命変転やクリティカルレイ、魔女の火用）
         　末尾に「$修正値」でダイス目に修正がかかります。
         　$＋１と修正表記ならダイス目に＋修正、＄９のように固定値ならダイス目をその出目に差し替え。
@@ -61,6 +68,9 @@ class SwordWorld2_5 < SwordWorld2_0
         ・首切り刀用レーティング上昇 r5
         　例）K20r5　K30+24@8R5　K40+24@8$12r5
 
+        ・肉喰む顎用クリティカルごと追加ダメージ ad2
+        　例）K20ad2　K30+24@8D2　K40+24@8$12ad2
+
         ・グレイテストフォーチュンは末尾に gf
         　例）K20gf　K30+24@8GF　K40+24@8$12r5gf
 
@@ -70,6 +80,9 @@ class SwordWorld2_5 < SwordWorld2_0
         ・威力表を1d+tfで参照 クリティカル後は2dで参照 tf3
         　例）k10tf3　k0+5tf4@13　k70+26tf3@9
 
+        ・アビスカース「難しい」用に KxSZy 表記でy以下の出目の威力表を0に書き換え。
+        　例) k10SZ4　k0+5@13sz6　k40+26@9sz3
+
         ・超越判定用に2d6ロールに 2D6@10 書式でクリティカル値付与が可能に。
         　例）2D6@10　2D6@10+11>=30
 
@@ -96,7 +109,7 @@ class SwordWorld2_5 < SwordWorld2_0
         　追加アビスカース表を出すことができます。
       INFO_MESSAGE_TEXT
 
-      register_prefix('H?K', 'OHK', 'Gr', '2D6?@\d+', 'FT', 'TT', 'Dru', 'Bib', 'ABT', 'AABT')
+      register_prefix('H?K', 'OHK', 'DBK', 'Gr', '2D6?@\d+', 'FT', 'TT', 'Dru', 'Bib', 'ABT', 'AABT')
 
       def eval_game_system_specific_command(command)
         case command
diff --git a/lib/bcdice/game_system/sword_world/rating_options.rb b/lib/bcdice/game_system/sword_world/rating_options.rb
index a981e9e4c..831cc5659 100644
--- a/lib/bcdice/game_system/sword_world/rating_options.rb
+++ b/lib/bcdice/game_system/sword_world/rating_options.rb
@@ -22,6 +22,9 @@ class RatingOptions
         # @return [Integer, nil]
         attr_accessor :rateup
 
+        # @return [Integer, nil]
+        attr_accessor :add_damage
+
         # @return [Boolean, nil]
         attr_accessor :greatest_fortune
 
@@ -31,6 +34,9 @@ class RatingOptions
         # @return [Integer, nil]
         attr_accessor :tmp_fixed_val
 
+        # @return [Integer, nil]
+        attr_accessor :set_zero_val
+
         # @return [Integer, nil]
         attr_accessor :modifier
 
@@ -40,6 +46,9 @@ class RatingOptions
         # @return [Integer, nil]
         attr_accessor :modifier_after_one_and_a_half
 
+        # @return [Integer, nil]
+        attr_accessor :modifier_after_double
+
         def settable_first_roll_adjust_option?
           return first_modify.nil? && first_to.nil? && first_modify_ssp.nil?
         end
diff --git a/lib/bcdice/game_system/sword_world/rating_parsed.rb b/lib/bcdice/game_system/sword_world/rating_parsed.rb
index ae1305a05..2b102ff41 100644
--- a/lib/bcdice/game_system/sword_world/rating_parsed.rb
+++ b/lib/bcdice/game_system/sword_world/rating_parsed.rb
@@ -25,6 +25,9 @@ class RatingParsed
         # @return [Integer]
         attr_accessor :rateup
 
+        # @return [Integer]
+        attr_accessor :add_damage
+
         # @return [Boolean]
         attr_accessor :greatest_fortune
 
@@ -34,6 +37,9 @@ class RatingParsed
         # @return [Integer]
         attr_accessor :tmp_fixed_val
 
+        # @return [Integer]
+        attr_accessor :set_zero_val
+
         # @return [Integer]
         attr_accessor :modifier
 
@@ -43,6 +49,9 @@ class RatingParsed
         # @return [Integer, nil]
         attr_accessor :modifier_after_one_and_a_half
 
+        # @return [Integer, nil]
+        attr_accessor :modifier_after_double
+
         def initialize(rate, modifier)
           @rate = rate
           @modifier = modifier
@@ -53,10 +62,13 @@ def initialize(rate, modifier)
           @first_modify_ssp = 0
           @greatest_fortune = false
           @rateup = 0
+          @add_damage = 0
           @semi_fixed_val = 0
           @tmp_fixed_val = 0
+          @set_zero_val = 0
           @modifier_after_half = nil
           @modifier_after_one_and_a_half = nil
+          @modifier_after_double = nil
         end
 
         # @return [Boolean]
@@ -69,6 +81,11 @@ def one_and_a_half
           return !@modifier_after_one_and_a_half.nil?
         end
 
+        # @return [Boolean]
+        def double
+          return !@modifier_after_double.nil?
+        end
+
         # @return [Integer]
         def min_critical
           if @semi_fixed_val <= 1
@@ -92,9 +109,11 @@ def to_s()
           output += "m[~#{Format.modifier(first_modify_ssp)}]" if first_modify_ssp != 0
           output += "m[#{first_to}]" if first_to != 0
           output += "r[#{rateup}]" if rateup != 0
+          output += "ad[#{add_damage}]" if add_damage != 0
           output += "gf" if @greatest_fortune
           output += "sf[#{semi_fixed_val}]" if semi_fixed_val != 0
           output += "tf[#{tmp_fixed_val}]" if tmp_fixed_val != 0
+          output += "sz[#{set_zero_val}]" if set_zero_val != 0
           output += "a[#{Format.modifier(kept_modify)}]" if kept_modify != 0
 
           if @modifier != 0
diff --git a/lib/bcdice/game_system/sword_world/rating_parser.y b/lib/bcdice/game_system/sword_world/rating_parser.y
index 505011c86..a19ab8c25 100644
--- a/lib/bcdice/game_system/sword_world/rating_parser.y
+++ b/lib/bcdice/game_system/sword_world/rating_parser.y
@@ -1,5 +1,5 @@
 class RatingParser
-  token NUMBER K R H O G F S T PLUS MINUS ASTERISK SLASH PARENL PARENR BRACKETL BRACKETR AT SHARP DOLLAR TILDE
+  token NUMBER K R H O D B G F S T Z A PLUS MINUS ASTERISK SLASH PARENL PARENR BRACKETL BRACKETR AT SHARP DOLLAR TILDE
 
   expect 4
 
@@ -13,7 +13,7 @@ class RatingParser
         | H rate option
         {
           _, rate, option = val
-          raise ParseError if option.modifier_after_one_and_a_half
+          raise ParseError if option.modifier_after_one_and_a_half or option.modifier_after_double
           option.modifier_after_half ||= Arithmetic::Node::Number.new(0)
           modifier = option.modifier || Arithmetic::Node::Number.new(0)
           result = parsed(rate, modifier.eval(@round_type), option)
@@ -21,11 +21,19 @@ class RatingParser
         | O H rate option
         {
           _, _, rate, option = val
-          raise ParseError if option.modifier_after_half
+          raise ParseError if option.modifier_after_half or option.modifier_after_double
           option.modifier_after_one_and_a_half ||= Arithmetic::Node::Number.new(0)
           modifier = option.modifier || Arithmetic::Node::Number.new(0)
           result = parsed(rate, modifier.eval(@round_type), option)
         }
+        | D B rate option
+        {
+          _, _, rate, option = val
+          raise ParseError if option.modifier_after_half or option.modifier_after_one_and_a_half
+          option.modifier_after_double ||= Arithmetic::Node::Number.new(0)
+          modifier = option.modifier || Arithmetic::Node::Number.new(0)
+          result = parsed(rate, modifier.eval(@round_type), option)
+        }
 
 
     rate: K NUMBER
@@ -123,6 +131,22 @@ class RatingParser
             option.modifier_after_one_and_a_half = term
             result = option
           }
+          | option D B
+          {
+            option, _, _ = val
+            raise ParseError unless option.modifier_after_double.nil?
+
+            option.modifier_after_double = Arithmetic::Node::Number.new(0)
+            result = option
+          }
+          | option D B unary
+          {
+            option, _, _, term = val
+            raise ParseError unless option.modifier_after_double.nil?
+
+            option.modifier_after_double = term
+            result = option
+          }
           | option R unary
           {
             option, _, term = val
@@ -131,6 +155,14 @@ class RatingParser
             option.rateup = term
             result = option
           }
+          | option A D unary
+          {
+            option, _, _, term = val
+            raise ParseError unless [:v2_5].include?(@version) && option.add_damage.nil?
+
+            option.add_damage = term
+            result = option
+          }
           | option G F
           {
             option, _, _ = val
@@ -155,6 +187,14 @@ class RatingParser
             option.tmp_fixed_val = term.to_i
             result = option
           }
+          | option S Z NUMBER
+          {
+            option, _, _, term = val
+            raise ParseError unless [:v2_5].include?(@version)
+
+            option.set_zero_val = term.to_i
+            result = option
+          }
           | option SHARP unary
           {
             option, _, term = val
@@ -244,11 +284,14 @@ def parsed(rate, modifier, option)
     p.first_modify = option.first_modify || 0
     p.first_modify_ssp = option.first_modify_ssp || 0
     p.rateup = option.rateup&.eval(@round_type) || 0
+    p.add_damage = option.add_damage&.eval(@round_type) || 0
     p.greatest_fortune = option.greatest_fortune if !option.greatest_fortune.nil?
     p.semi_fixed_val = option.semi_fixed_val&.clamp(1, 6) || 0
     p.tmp_fixed_val = option.tmp_fixed_val&.clamp(1, 6) || 0
+    p.set_zero_val = option.set_zero_val || 0
     p.modifier_after_half = option.modifier_after_half&.eval(@round_type)
     p.modifier_after_one_and_a_half = option.modifier_after_one_and_a_half&.eval(@round_type)
+    p.modifier_after_double = option.modifier_after_double&.eval(@round_type)
     p.critical = option.critical&.eval(@round_type)&.clamp(0, 13) || (p.half || p.one_and_a_half ? 13 : 10)
   end
 end
diff --git a/test/data/SwordWorld2_5.toml b/test/data/SwordWorld2_5.toml
index df67c3d4f..26bb14591 100644
--- a/test/data/SwordWorld2_5.toml
+++ b/test/data/SwordWorld2_5.toml
@@ -258,6 +258,131 @@ rands = [
   { sides = 6, value = 2 },
 ]
 
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "K20ad2"
+output = "KeyNo.20c[10]ad[2] ＞ 2D:[5,2]=7 ＞ 5"
+rands = [
+  { sides = 6, value = 5 },
+  { sides = 6, value = 2 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "K20ad2"
+output = "KeyNo.20c[10]ad[2] ＞ 2D:[5,5 2,3]=10,5 ＞ 8,3+2*1 ＞ 1回転 ＞ 13"
+critical = true
+rands = [
+  { sides = 6, value = 5 },
+  { sides = 6, value = 5 },
+  { sides = 6, value = 2 },
+  { sides = 6, value = 3 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "K20+5#1ad2"
+output = "KeyNo.20c[10]ad[2]a[+1]+5 ＞ 2D:[5,4 2,2]=10,5 ＞ 8,3+5+2*1 ＞ 1回転 ＞ 18"
+critical = true
+rands = [
+  { sides = 6, value = 5 },
+  { sides = 6, value = 4 },
+  { sides = 6, value = 2 },
+  { sides = 6, value = 2 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "K20$+1ad2"
+output = "KeyNo.20c[10]m[+1]ad[2] ＞ 2D:[5,4 2,2]=10,4 ＞ 8,2+2*1 ＞ 1回転 ＞ 12"
+critical = true
+rands = [
+  { sides = 6, value = 5 },
+  { sides = 6, value = 4 },
+  { sides = 6, value = 2 },
+  { sides = 6, value = 2 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "K20$+1#1ad2"
+output = "KeyNo.20c[10]m[+1]ad[2]a[+1] ＞ 2D:[5,4 2,2]=11,5 ＞ 9,3+2*1 ＞ 1回転 ＞ 14"
+critical = true
+rands = [
+  { sides = 6, value = 5 },
+  { sides = 6, value = 4 },
+  { sides = 6, value = 2 },
+  { sides = 6, value = 2 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "K20+5@10ad2h"
+output = "KeyNo.20c[10]ad[2]+5 ＞ 2D:[5,5 2,3]=10,5 ＞ (8,3+5+2*1)/2 ＞ 1回転 ＞ 9"
+critical = true
+rands = [
+  { sides = 6, value = 5 },
+  { sides = 6, value = 5 },
+  { sides = 6, value = 2 },
+  { sides = 6, value = 3 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "K20+5@10ad2oh"
+output = "KeyNo.20c[10]ad[2]+5 ＞ 2D:[5,5 2,3]=10,5 ＞ (8,3+5+2*1)*1.5 ＞ 1回転 ＞ 27"
+critical = true
+rands = [
+  { sides = 6, value = 5 },
+  { sides = 6, value = 5 },
+  { sides = 6, value = 2 },
+  { sides = 6, value = 3 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "K20+5@10ad2db"
+output = "KeyNo.20c[10]ad[2]+5 ＞ 2D:[5,5 2,3]=10,5 ＞ (8,3+5+2*1)*2 ＞ 1回転 ＞ 36"
+critical = true
+rands = [
+  { sides = 6, value = 5 },
+  { sides = 6, value = 5 },
+  { sides = 6, value = 2 },
+  { sides = 6, value = 3 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "K40+24sf4@8$12r10#1ad2"
+output = "KeyNo.40c[8]m[12]r[10]ad[2]sf[4]a[+1]+24 ＞ 2D:[4,4 4,4 6,4 5,4 1,4]=12,9,11,10,6 ＞ 13,12,16,18,13+24+2*4 ＞ 4回転 ＞ 104"
+critical = true
+rands = [
+  { sides = 6, value = 4 },
+  { sides = 6, value = 4 },
+  { sides = 6, value = 6 },
+  { sides = 6, value = 5 },
+  { sides = 6, value = 1 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "K40+24tf4@8$12r10#1ad2"
+output = "KeyNo.40c[8]m[12]r[10]ad[2]tf[4]a[+1]+24 ＞ 2D:[6,4 4,5 1,6 4,4 3,5 3,3]=12,10,8,9,9,7 ＞ 13,13,13,17,20,18+24+2*5 ＞ 5回転 ＞ 128"
+critical = true
+rands = [
+  { sides = 6, value = 6 },
+  { sides = 6, value = 4 },
+  { sides = 6, value = 5 },
+  { sides = 6, value = 1 },
+  { sides = 6, value = 6 },
+  { sides = 6, value = 4 },
+  { sides = 6, value = 4 },
+  { sides = 6, value = 3 },
+  { sides = 6, value = 5 },
+  { sides = 6, value = 3 },
+  { sides = 6, value = 3 },
+]
+
 [[ test ]]
 game_system = "SwordWorld2.5"
 input = "SK20+5"
@@ -574,6 +699,119 @@ input = "ohk10h"
 output = ""
 rands = []
 
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "DBk10 DBKのクリティカル値は10"
+output = "KeyNo.10c[10] ＞ 2D:[6,6 5,3]=12,8 ＞ (7,4)*2 ＞ 1回転 ＞ 22"
+critical = true
+rands = [
+  { sides = 6, value = 6 },
+  { sides = 6, value = 6 },
+  { sides = 6, value = 5 },
+  { sides = 6, value = 3 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "k10db"
+output = "KeyNo.10c[10] ＞ 2D:[6,6 5,3]=12,8 ＞ (7,4)*2 ＞ 1回転 ＞ 22"
+critical = true
+rands = [
+  { sides = 6, value = 6 },
+  { sides = 6, value = 6 },
+  { sides = 6, value = 5 },
+  { sides = 6, value = 3 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "dbk10db"
+output = "KeyNo.10c[10] ＞ 2D:[2,6]=8 ＞ 4*2 ＞ 8"
+rands = [
+  { sides = 6, value = 2 },
+  { sides = 6, value = 6 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "dbk10[9]+10"
+output = "KeyNo.10c[9]+10 ＞ 2D:[5,3]=8 ＞ (4+10)*2 ＞ 28"
+rands = [
+  { sides = 6, value = 5 },
+  { sides = 6, value = 3 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "dbk10[9]+10"
+output = "KeyNo.10c[9]+10 ＞ 2D:[2,4]=6 ＞ (3+10)*2 ＞ 26"
+rands = [
+  { sides = 6, value = 2 },
+  { sides = 6, value = 4 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "dbK20+6@4"
+output = "KeyNo.20c[4]+6 ＞ 2D:[4,3 2,5 2,6 1,1]=7,7,8,2 ＞ (5,5,6,**+6)*2 ＞ 3回転 ＞ 44"
+critical = true
+rands = [
+  { sides = 6, value = 4 },
+  { sides = 6, value = 3 },
+  { sides = 6, value = 2 },
+  { sides = 6, value = 5 },
+  { sides = 6, value = 2 },
+  { sides = 6, value = 6 },
+  { sides = 6, value = 1 },
+  { sides = 6, value = 1 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "K20+6@4db"
+output = "KeyNo.20c[4]+6 ＞ 2D:[4,3 2,5 2,6 1,1]=7,7,8,2 ＞ (5,5,6,**+6)*2 ＞ 3回転 ＞ 44"
+critical = true
+rands = [
+  { sides = 6, value = 4 },
+  { sides = 6, value = 3 },
+  { sides = 6, value = 2 },
+  { sides = 6, value = 5 },
+  { sides = 6, value = 2 },
+  { sides = 6, value = 6 },
+  { sides = 6, value = 1 },
+  { sides = 6, value = 1 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "k20db+1+1"
+output = "KeyNo.20c[10]+1 ＞ 2D:[2,6]=8 ＞ (6+1)*2+1 ＞ 15"
+rands = [
+  { sides = 6, value = 2 },
+  { sides = 6, value = 6 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "k20db+(1+1)"
+output = "KeyNo.20c[10] ＞ 2D:[2,6]=8 ＞ 6*2+2 ＞ 14"
+rands = [
+  { sides = 6, value = 2 },
+  { sides = 6, value = 6 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "dbk10oh"
+output = ""
+rands = []
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "ohk10db"
+output = ""
+rands = []
+
 [[ test ]]
 game_system = "SwordWorld2.5"
 input = "k20sf4 sf通常時"
@@ -681,6 +919,62 @@ input = "k20sf1#8@2 クリティカル下限エラー sfが1の時の下限は3"
 output = "C値を3以上にしてください"
 rands = []
 
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "k20+5SZ4"
+output = "KeyNo.20c[10]sz[4]+5 ＞ 2D:[5,5 1,2]=10,3 ＞ 8,0+5 ＞ 1回転 ＞ 13"
+critical = true
+rands = [
+  { sides = 6, value = 5 },
+  { sides = 6, value = 5 },
+  { sides = 6, value = 1 },
+  { sides = 6, value = 2 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "k20sz4"
+output = "KeyNo.20c[10]sz[4] ＞ 2D:[3,2]=5 ＞ 3"
+rands = [
+  { sides = 6, value = 3 },
+  { sides = 6, value = 2 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "k20tf3sz4"
+output = "KeyNo.20c[10]tf[3]sz[4] ＞ 2D:[1,3]=4 ＞ 0"
+rands = [
+  { sides = 6, value = 1 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "k20sz4sf3"
+output = "KeyNo.20c[10]sf[3]sz[4] ＞ 2D:[1,3]=4 ＞ 0"
+rands = [
+  { sides = 6, value = 1 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "k20$+1sz5"
+output = "KeyNo.20c[10]m[+1]sz[5] ＞ 2D:[3,1]=5 ＞ 0"
+rands = [
+  { sides = 6, value = 3 },
+  { sides = 6, value = 1 },
+]
+
+[[ test ]]
+game_system = "SwordWorld2.5"
+input = "k20sz4"
+output = "KeyNo.20c[10]sz[4] ＞ 2D:[1,1]=2 ＞ ** ＞ 自動的失敗"
+fumble = true
+rands = [
+  { sides = 6, value = 1 },
+  { sides = 6, value = 1 },
+]
+
 [[ test ]]
 game_system = "SwordWorld2.5"
 input = "2D6@10+15>=30"