--機皇兵スキエル・アイン
local s,id=GetID()
function s.initial_effect(c)
	--Negate Damage
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_QUICK_O)
	e1:SetCode(EVENT_CHAINING)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCondition(s.con)
	e1:SetOperation(s.op)
	c:RegisterEffect(e1)
end
function s.con(e,tp,eg,ep,ev,re,r,rp)
	local e1=Duel.IsPlayerAffectedByEffect(tp,EFFECT_REVERSE_DAMAGE)
	local e2=Duel.IsPlayerAffectedByEffect(tp,EFFECT_REVERSE_RECOVER)
	local rd=e1 and not e2
	local rr=not e1 and e2
	local ex,cg,ct,cp,cv=Duel.GetOperationInfo(ev,CATEGORY_DAMAGE)
	if ex and (cp==tp or cp==PLAYER_ALL) and not rd and not Duel.IsPlayerAffectedByEffect(tp,EFFECT_NO_EFFECT_DAMAGE) 
		and cv>=1000 then 
		return true 
	end
	ex,cg,ct,cp,cv=Duel.GetOperationInfo(ev,CATEGORY_RECOVER)
	return ex and (cp==tp or cp==PLAYER_ALL) and rr and not Duel.IsPlayerAffectedByEffect(tp,EFFECT_NO_EFFECT_DAMAGE) and cv>=1000
end
function s.op(e,tp,eg,ep,ev,re,r,rp,val,r,rc)
	local cid=Duel.GetChainInfo(ev,CHAININFO_CHAIN_ID)
	local e1=Effect.CreateEffect(e:GetHandler())
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_CHANGE_DAMAGE)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e1:SetTargetRange(1,0)
	e1:SetLabel(cid)
	e1:SetValue(s.refcon)
	e1:SetReset(RESET_CHAIN)
	Duel.RegisterEffect(e1,tp)
end
function s.refcon(e,re,val,r,rp,rc)
	local cc=Duel.GetCurrentChain()
	if cc==0 or (r&REASON_EFFECT)==0 then return end
	local cid=Duel.GetChainInfo(0,CHAININFO_CHAIN_ID)
	if cid==e:GetLabel() then e:SetLabel(val) return 0
	else return val end
end