Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
[ Pendulum Effect ] Once per turn, when an opponent's monster declares an attack: You can make that opponent's monster lose 300 ATK for each face-up Pendulum Monster in your Extra Deck. ---------------------------------------- [ Monster Effect ] If this card is Normal or Special Summoned: You can send 1 "Performapal" or "Odd-Eyes" monster from your Deck to the GY, except "Performapal Odd-Eyes Valet", and if you do, this card's Level becomes the same as that monster's, until the end of this turn. You can only use this effect of "Performapal Odd-Eyes Valet" once per turn. If this card in the Monster Zone is destroyed: You can place this card in your Pendulum Zone.
--ＥＭオッドアイズ・バレット
--Performapal Odd-Eyes Valet
--Scripted by Nellag
local s,id=GetID()
function s.initial_effect(c)
	--Enable Pendulum Summon
	Pendulum.AddProcedure(c)
	--Decrease ATK
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_ATKCHANGE)
	e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_ATTACK_ANNOUNCE)
	e1:SetRange(LOCATION_PZONE)
	e1:SetCountLimit(1)
	e1:SetCondition(function(_,tp) return Duel.GetAttacker():IsControler(1-tp) end)
	e1:SetTarget(s.atktg)
	e1:SetOperation(s.atkop)
	c:RegisterEffect(e1)
	--Send 1 "Performapal" or "Odd-Eyes" monster from your Deck to the GY
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_TOGRAVE+CATEGORY_LVCHANGE)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetProperty(EFFECT_FLAG_DAMAGE_STEP+EFFECT_FLAG_DELAY)
	e2:SetCode(EVENT_SUMMON_SUCCESS)
	e2:SetCountLimit(1,id)
	e2:SetTarget(s.lvtg)
	e2:SetOperation(s.lvop)
	c:RegisterEffect(e2)
	local e3=e2:Clone()
	e3:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e3)
	--Place itself in your Pendulum Zone
	local e4=Effect.CreateEffect(c)
	e4:SetDescription(aux.Stringid(id,2))
	e4:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e4:SetProperty(EFFECT_FLAG_DELAY)
	e4:SetCode(EVENT_DESTROYED)
	e4:SetCondition(s.pencon)
	e4:SetTarget(s.pentg)
	e4:SetOperation(s.penop)
	c:RegisterEffect(e4)
end
s.listed_series={SET_PERFORMAPAL,SET_ODD_EYES}
s.listed_names={id}
function s.atktg(e,tp,eg,ep,ev,re,r,rp,chk)
	local tg=Duel.GetAttacker()
	if chk==0 then return tg:IsOnField()
		and Duel.GetMatchingGroupCount(aux.FaceupFilter(Card.IsType,TYPE_PENDULUM),tp,LOCATION_EXTRA,0,nil)>0 end
end
function s.atkop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if not c:IsRelateToEffect(e) then return end
	local at=Duel.GetAttacker()
	local pc=Duel.GetMatchingGroupCount(aux.FaceupFilter(Card.IsType,TYPE_PENDULUM),tp,LOCATION_EXTRA,0,nil)
	if pc>0 and at and at:IsRelateToBattle() and at:IsFaceup() then
		--Decrease ATK
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		e1:SetValue(-pc*300)
		e1:SetReset(RESET_EVENT|RESETS_STANDARD)
		at:RegisterEffect(e1)
	end
end
function s.tgfilter(c)
	return c:IsAbleToGrave() and c:IsSetCard({SET_PERFORMAPAL,SET_ODD_EYES}) and c:IsMonster() and not c:IsCode(id)
end
function s.lvtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.tgfilter,tp,LOCATION_DECK,0,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_TOGRAVE,nil,1,tp,LOCATION_DECK)
end
function s.lvop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TOGRAVE)
	local tc=Duel.SelectMatchingCard(tp,s.tgfilter,tp,LOCATION_DECK,0,1,1,nil):GetFirst()
	if tc and Duel.SendtoGrave(tc,REASON_EFFECT)>0 and tc:IsLocation(LOCATION_GRAVE)
		and c:IsRelateToEffect(e) then
		--Change this card's Level
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_CHANGE_LEVEL)
		e1:SetValue(tc:GetLevel())
		e1:SetReset(RESETS_STANDARD_DISABLE_PHASE_END)
		c:RegisterEffect(e1)
	end
end
function s.pencon(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	return c:IsPreviousLocation(LOCATION_MZONE) and c:IsFaceup()
end
function s.pentg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.CheckPendulumZones(tp) end
end
function s.penop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsRelateToEffect(e) and Duel.CheckPendulumZones(tp) then
		Duel.MoveToField(c,tp,tp,LOCATION_PZONE,POS_FACEUP,true)
	end
end