Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
2 Level 4 monsters If this card is Xyz Summoned: You can detach 1 material from this card; add 1 Level 4 or higher Normal Monster from your Deck or GY to your hand. If this card has a Normal Monster as material, it gains this effect. ● At the start of the Damage Step, if this card battles an opponent's monster with the same Attribute as a Normal Monster or "Magikey" monster in your GY: You can detach 1 material from this card; your opponent must send that monster to the GY.
--魔鍵憑霊－ウェパルトゥ
--Magikey Spirit - Vepartu
--Scripted by Eerie Code
local s,id=GetID()
function s.initial_effect(c)
	c:EnableReviveLimit()
	Xyz.AddProcedure(c,nil,4,2)
	--Add 1 Normal monster from the Deck or GY to the hand
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_TOHAND+CATEGORY_SEARCH)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_SPSUMMON_SUCCESS)
	e1:SetProperty(EFFECT_FLAG_DELAY)
	e1:SetCondition(function(e) return e:GetHandler():IsXyzSummoned() end)
	e1:SetCost(Cost.DetachFromSelf(1,1,nil))
	e1:SetTarget(s.thtg)
	e1:SetOperation(s.thop)
	c:RegisterEffect(e1)
	--Make the opponent send a monste to the GY
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_TOGRAVE)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_BATTLE_START)
	e2:SetCondition(s.gycon)
	e2:SetCost(Cost.DetachFromSelf(1,1,nil))
	e2:SetTarget(s.gytg)
	e2:SetOperation(s.gyop)
	c:RegisterEffect(e2)
end
s.listed_series={SET_MAGIKEY}
function s.thfilter(c)
	return c:IsLevelAbove(4) and c:IsType(TYPE_NORMAL) and c:IsAbleToHand()
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.thfilter,tp,LOCATION_DECK|LOCATION_GRAVE,0,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,tp,LOCATION_DECK|LOCATION_GRAVE)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(s.thfilter),tp,LOCATION_DECK|LOCATION_GRAVE,0,1,1,nil)
	if #g>0 then
		Duel.SendtoHand(g,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,g)
	end
end
function s.gyfilter(c,att)
	return c:IsMonster() and (c:IsType(TYPE_NORMAL) or c:IsSetCard(SET_MAGIKEY)) and c:IsAttribute(att)
end
function s.gycon(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local bc=c:GetBattleTarget()
	return c:GetOverlayGroup():IsExists(Card.IsType,1,nil,TYPE_NORMAL)
		and c:IsRelateToBattle() and bc and bc:IsFaceup() and bc:IsRelateToBattle()
		and Duel.IsExistingMatchingCard(s.gyfilter,tp,LOCATION_GRAVE,0,1,nil,bc:GetAttribute())
end
function s.gytg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	Duel.SetOperationInfo(0,CATEGORY_TOGRAVE,e:GetHandler():GetBattleTarget(),1,0,0)
end
function s.gyop(e,tp,eg,ep,ev,re,r,rp)
	local bc=e:GetHandler():GetBattleTarget()
	if bc:IsRelateToBattle() and bc:IsFaceup() then
		Duel.SendtoGrave(bc,REASON_RULE,PLAYER_NONE,1-tp)
	end
end