diff --git a/sonic-radiance.love/datas/consts/stats.lua b/sonic-radiance.love/datas/consts/stats.lua
index 3c2e677..a29d184 100644
--- a/sonic-radiance.love/datas/consts/stats.lua
+++ b/sonic-radiance.love/datas/consts/stats.lua
@@ -9,6 +9,15 @@ CONST.MIND = "mind"
 CONST.TECHNIC = "technic"
 CONST.SPEED = "speed"
 
+CONST.DAMAGE = "damage"
+CONST.ACCURACY = "accuracy"
+CONST.EVASION = "evasion"
+CONST.LUCK = "luck"
+CONST.ARMOR = "armor"
+CONST.CRITICAL = "critical"
+CONST.HPREGEN = "hpregen"
+CONST.PPREGEN = "ppregen"
+
 CONST.RANK_E = 10
 CONST.RANK_D = 25
 CONST.RANK_C = 40
@@ -18,6 +27,7 @@ CONST.RANK_S = 100
 CONST.MULT_HP = 4.5
 
 CONST.LIST = {CONST.HPMAX, CONST.PPMAX, CONST.ATTACK, CONST.POWER, CONST.DEFENSE, CONST.MIND, CONST.TECHNIC, CONST.SPEED}
+CONST.BATTLELIST = {CONST.ACCURACY, CONST.EVASION, CONST.LUCK, CONST.DAMAGE, CONST.ARMOR, CONST.CRITICAL, CONST.HPREGEN, CONST.PPREGEN}
 
 CONST.SIMPLENAME = {}
 CONST.SIMPLENAME[CONST.HPMAX]   = "HP"
@@ -41,4 +51,23 @@ CONST.MULT_HP = 7.5
 CONST.SALT_HP = 35
 CONST.MULT_MP = 1.5
 
+local function createBattleStat(name, valueHero, valueEnnemy)
+    CONST.BATTLESTAT.HERO[name] = valueHero
+    CONST.BATTLESTAT.ENNEMI[name] = valueEnnemy or valueHero
+end
+
+CONST.BATTLESTAT = {}
+CONST.BATTLESTAT.HERO = {}
+CONST.BATTLESTAT.ENNEMI = {}
+createBattleStat("accuracy", 100)
+createBattleStat("evasion", 0)
+createBattleStat("luck", 66, 40)
+createBattleStat("damage", 0)
+createBattleStat("armor", 0)
+createBattleStat("critical", 0)
+createBattleStat("hpregen", -10)
+createBattleStat("ppregen", 10)
+
+CONST.ARMOR_AND_DAMAGE_RATIO = .5
+
 return CONST
diff --git a/sonic-radiance.love/game/abstractmobs/character/statmanager.lua b/sonic-radiance.love/game/abstractmobs/character/statmanager.lua
index f3d6b0c..620c271 100644
--- a/sonic-radiance.love/game/abstractmobs/character/statmanager.lua
+++ b/sonic-radiance.love/game/abstractmobs/character/statmanager.lua
@@ -6,7 +6,7 @@ function CharacterStatManager:new(owner)
 end
 
 function CharacterStatManager:computeStat(statname, ignoreEquip)
-    local stat = self.owner:getLevelStat(statname) + self.owner:getEquipStats(statname, ignoreEquip)
+    local stat = self:getBaseStat(statname) + self.owner:getEquipStats(statname, ignoreEquip)
     return stat
 end
 
@@ -16,4 +16,12 @@ function CharacterStatManager:predictStat(statname, category, name)
     return self:computeStat(statname, category) + boost
 end
 
+function CharacterStatManager:getBaseStat(statname)
+    if (self:isBattleStat(statname)) then
+        return self:getBattleStat(statname)
+    else
+        return self.owner:getLevelStat(statname)
+    end
+end
+
 return CharacterStatManager
\ No newline at end of file
diff --git a/sonic-radiance.love/game/abstractmobs/ennemy/statmanager.lua b/sonic-radiance.love/game/abstractmobs/ennemy/statmanager.lua
index 5480215..fa4a46f 100644
--- a/sonic-radiance.love/game/abstractmobs/ennemy/statmanager.lua
+++ b/sonic-radiance.love/game/abstractmobs/ennemy/statmanager.lua
@@ -2,7 +2,7 @@ local StatManager = require "game.abstractmobs.statmanager"
 local EnnemyStatManager = StatManager:extend()
 
 function EnnemyStatManager:new(owner)
-    EnnemyStatManager.super.new(self, owner)
+    EnnemyStatManager.super.new(self, owner, "ENNEMI")
     self.pvFactor = 1
     self.statFactor = 1
 end
@@ -15,10 +15,16 @@ end
 function EnnemyStatManager:computeStat(statname)
     local stat = self.owner.data.stats[statname]
 
+    if (self:isBattleStat(statname)) then
+        return self:getBattleStat(statname)
+    end
+
     if statname == EnnemyStatManager.HPMAX then
         return stat * self.pvFactor
     elseif (statname ~= EnnemyStatManager.PPMAX) then
         return stat * self.statFactor
+    else
+        return stat
     end
 end
 
diff --git a/sonic-radiance.love/game/abstractmobs/statmanager.lua b/sonic-radiance.love/game/abstractmobs/statmanager.lua
index a06ac5d..05f9dc9 100644
--- a/sonic-radiance.love/game/abstractmobs/statmanager.lua
+++ b/sonic-radiance.love/game/abstractmobs/statmanager.lua
@@ -11,8 +11,10 @@ StatManager.MIND = CONST.MIND
 StatManager.TECHNIC = CONST.TECHNIC
 StatManager.SPEED = CONST.SPEED
 
-function StatManager:new(owner)
+function StatManager:new(owner, battleStatType)
+    local battleStatType = battleStatType or "HERO"
     self.owner = owner
+    self.battleStats = CONST.BATTLESTAT[battleStatType]
 end
 
 function StatManager:get(statname)
@@ -23,4 +25,12 @@ function StatManager:computeStat(statname)
     return self.list[statname]
 end
 
+function StatManager:isBattleStat(statname)
+    return utils.table.contain(CONST.BATTLELIST, statname)
+end
+
+function StatManager:getBattleStat(statname)
+    return self.battleStats[statname]
+end
+
 return StatManager
\ No newline at end of file
diff --git a/sonic-radiance.love/game/utils/battle/init.lua b/sonic-radiance.love/game/utils/battle/init.lua
index 025973f..be1569d 100644
--- a/sonic-radiance.love/game/utils/battle/init.lua
+++ b/sonic-radiance.love/game/utils/battle/init.lua
@@ -11,6 +11,13 @@ function BattleUtils.computeLaunchingDamages(base, fighter, isSpecial)
     else
         damages = damages * fighter:getStat(STATS.ATTACK)
     end
+
+    damages = damages * BattleUtils.computerArmorAndDamage(fighter:getStat(STATS.DAMAGE))
+
+    if (BattleUtils.rollDice(fighter:getStat(STATS.CRITICAL))) then
+        damages = damages * 2
+    end
+
     return damages
 end
 
@@ -22,6 +29,8 @@ function BattleUtils.computeReceivingDamages(base, fighter, isSpecial, isDefendi
         damages = damages / fighter:getStat(STATS.DEFENSE)
     end
 
+    damages = damages * BattleUtils.computerArmorAndDamage(fighter:getStat(STATS.ARMOR), true)
+
     if (isDefending) then
         damages = damages * CONSTS.DAMAGE.DEFFACTOR
     end
@@ -57,9 +66,19 @@ function BattleUtils.applyResistences(damages, element, resistsList)
     return damages
 end
 
-function BattleUtils.isAttackSuccess(statutList)
-    local accuracy = 100
-    return (math.random(100) <= accuracy)
+function BattleUtils.rollDice(stat)
+    local stat = stat or 100
+    return (math.random(100) <= stat)
+end
+
+function BattleUtils.computerArmorAndDamage(stat, isNegative)
+    if (isNegative) then
+        stat = stat * -1
+    end
+    if (stat < 0) then
+        stat = stat * STATS.ARMOR_AND_DAMAGE_RATIO
+    end
+    return (100 + (stat))/100
 end
 
 return BattleUtils
diff --git a/sonic-radiance.love/scenes/battlesystem/controllers/fighters/parent.lua b/sonic-radiance.love/scenes/battlesystem/controllers/fighters/parent.lua
index cf484ed..b0effe7 100644
--- a/sonic-radiance.love/scenes/battlesystem/controllers/fighters/parent.lua
+++ b/sonic-radiance.love/scenes/battlesystem/controllers/fighters/parent.lua
@@ -1,6 +1,7 @@
 local FighterParent = Object:extend()
 
 local battleutils = require "game.utils.battle"
+local STATS = require "datas.consts.stats"
 
 function FighterParent:new(owner, isHero, id)
   self.owner = owner
@@ -78,7 +79,12 @@ function FighterParent:sendDamage(target, value, type, element, isSpecial)
   local damage = battleutils.computeLaunchingDamages(value, self, isSpecial)
 
   core.debug:print("cbs/battler", "Sending " .. damage .." damage at " .. target.name)
-  return target:receiveDamage(damage, type, element, isSpecial, self)
+  if (battleutils.rollDice(self:getStat(STATS.ACCURACY))) then
+    return target:receiveDamage(damage, type, element, isSpecial, self)
+  else
+    target.actor:avoidedAttack()
+    return false
+  end
 end
 
 function FighterParent:receiveDamage(value, type, element, isSpecial, fromWho)
@@ -87,11 +93,11 @@ function FighterParent:receiveDamage(value, type, element, isSpecial, fromWho)
   damages = battleutils.applyResistences(damages, element, self.abstract:getResistences())
   damages = battleutils.applyWeaknesses(damages, element, self.abstract:getWeaknesses())
 
-  if (battleutils.isAttackSuccess(nil)) then
-    self:applyDamage(damages)
-  else
+  if (battleutils.rollDice(self:getStat(STATS.EVASION))) then
     self.actor:avoidedAttack()
     return false
+  else
+    self:applyDamage(damages)
   end
 
   return true
@@ -134,8 +140,21 @@ function FighterParent:setActive()
   self:startAction()
 end
 
+function FighterParent:applyRegen()
+  local regenStat = self:getStat(STATS.HPREGEN)
+  if (regenStat ~= 0) then
+    self:setHP(regenStat*self:getStat(STATS.HPMAX)/100, true)
+  end
+
+  local regenStat = self:getStat(STATS.PPREGEN)
+  if (regenStat ~= 0) then
+    self:setPP(regenStat*self:getStat(STATS.PPMAX)/100, true)
+  end
+end
+
 function FighterParent:setInactive()
   self.isActive = false
+  self:applyRegen()
   self.turnSystem:endAction()
 end