Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If you control a "Ki-sikil" monster, you can Special Summon this card (from your hand). You can only Special Summon "Live☆Twin Lil-la Treat" once per turn this way. When either player takes damage from a battle involving an "Evil★Twin" monster: You can banish this card from your GY, then target 1 face-up monster your opponent controls; it loses ATK equal to that battle damage. You can only use this effect of "Live☆Twin Lil-la Treat" once per turn.
--Ｌｉｖｅ☆Ｔｗｉｎ リィラ・トリート
--Live☆Twin Lil-la Treat
--Scripted by Hel
local s,id=GetID()
function s.initial_effect(c)
	--Special Summon itself from hand
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_SPSUMMON_PROC)
	e1:SetRange(LOCATION_HAND)
	e1:SetProperty(EFFECT_FLAG_UNCOPYABLE)
	e1:SetCountLimit(1,id,EFFECT_COUNT_CODE_OATH)
	e1:SetCondition(s.spcon)
	c:RegisterEffect(e1)
	--Banish itself to reduce ATK
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_BATTLE_DAMAGE)
	e2:SetCategory(CATEGORY_ATKCHANGE)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetCountLimit(1,{id,1})
	e2:SetCondition(s.condition)
	e2:SetCost(Cost.SelfBanish)
	e2:SetTarget(s.target)
	e2:SetOperation(s.operation)
	c:RegisterEffect(e2)
end
s.listed_series={SET_KI_SIKIL,SET_EVIL_TWIN}
function s.spcon(e,c)
	if c==nil then return true end
	return Duel.GetLocationCount(c:GetControler(),LOCATION_MZONE)>0
		and Duel.IsExistingMatchingCard(aux.FaceupFilter(Card.IsSetCard,SET_KI_SIKIL),e:GetHandlerPlayer(),LOCATION_MZONE,0,1,nil)
end
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetAttacker()
	local at=Duel.GetAttackTarget()
	return (Duel.GetBattleDamage(tp)>0 or Duel.GetBattleDamage(1-tp)) and (tc:IsSetCard(SET_EVIL_TWIN) or (at and at:IsSetCard(SET_EVIL_TWIN)))
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsControler(1-tp) and chkc:IsFaceup() end
	if chk==0 then return Duel.IsExistingTarget(Card.IsFaceup,tp,0,LOCATION_MZONE,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_FACEUP)
	Duel.SelectTarget(tp,Card.IsFaceup,tp,0,LOCATION_MZONE,1,1,nil)
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsFaceup() and tc:IsRelateToEffect(e) then
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		if Duel.GetBattleDamage(tp)>0 then
			e1:SetValue(-Duel.GetBattleDamage(tp))
		else
			e1:SetValue(-Duel.GetBattleDamage(1-tp))
		end
		e1:SetReset(RESET_EVENT|RESETS_STANDARD)
		tc:RegisterEffect(e1)
	end
end