Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
3+ Effect Monsters Neither player can target this card with monster effects. Once per turn (Quick Effect): You can target 1 face-up monster on the field; it loses 500 ATK/DEF. Your opponent cannot activate cards or effects in response to this effect's activation. At the start of the Damage Step, if this card attacks an opponent's monster: You can place that opponent's monster in a zone this card points to and take control of it, but send it to the GY during the End Phase of the next turn.
--ヴァレルロード・ドラゴン
--Borreload Dragon
local s,id=GetID()
function s.initial_effect(c)
	c:EnableReviveLimit()
	--Link Summon procedure
	Link.AddProcedure(c,aux.FilterBoolFunctionEx(Card.IsType,TYPE_EFFECT),3)
	--Cannot be targeted by monster effects
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e1:SetCode(EFFECT_CANNOT_BE_EFFECT_TARGET)
	e1:SetRange(LOCATION_MZONE)
	e1:SetValue(function(e,re,rp) return re:IsMonsterEffect() end)
	c:RegisterEffect(e1)
	--Target monster loses 500 ATK/DEF
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetCategory(CATEGORY_ATKCHANGE+CATEGORY_DEFCHANGE)
	e2:SetType(EFFECT_TYPE_QUICK_O)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET+EFFECT_FLAG_DAMAGE_STEP)
	e2:SetCode(EVENT_FREE_CHAIN)
	e2:SetRange(LOCATION_MZONE)
	e2:SetHintTiming(TIMING_DAMAGE_STEP|TIMING_END_PHASE)
	e2:SetCountLimit(1)
	e2:SetCondition(aux.StatChangeDamageStepCondition)
	e2:SetTarget(s.atktg)
	e2:SetOperation(s.atkop)
	c:RegisterEffect(e2)
	--Take control of an opponent's monster this card attacks
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,1))
	e3:SetCategory(CATEGORY_CONTROL)
	e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e3:SetCode(EVENT_BATTLE_START)
	e3:SetCondition(s.ctcon)
	e3:SetTarget(s.cttg)
	e3:SetOperation(s.ctop)
	c:RegisterEffect(e3)
end
function s.atktg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsFaceup() end
	if chk==0 then return Duel.IsExistingTarget(Card.IsFaceup,tp,LOCATION_MZONE,LOCATION_MZONE,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_FACEUP)
	Duel.SelectTarget(tp,Card.IsFaceup,tp,LOCATION_MZONE,LOCATION_MZONE,1,1,nil)
	Duel.SetChainLimit(function(_e,_ep,_tp) return _tp==_ep end)
end
function s.atkop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsFaceup() and tc:IsRelateToEffect(e) then
		--It loses 500 ATK/DEF
		local e1=Effect.CreateEffect(e:GetHandler())
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		e1:SetReset(RESET_EVENT|RESETS_STANDARD)
		e1:SetValue(-500)
		tc:RegisterEffect(e1)
		local e2=e1:Clone()
		e2:SetCode(EFFECT_UPDATE_DEFENSE)
		tc:RegisterEffect(e2)
	end
end
function s.ctcon(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=Duel.GetAttackTarget()
	local zone=c:GetLinkedZone()&ZONES_MMZ
	return Duel.GetAttacker()==c and tc and tc:IsControler(1-tp) and tc:IsControlerCanBeChanged(false,zone)
end
function s.cttg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	local tc=Duel.GetAttackTarget()
	Duel.SetTargetCard(tc)
	Duel.SetOperationInfo(0,CATEGORY_CONTROL,tc,1,tp,0)
end
function s.ctop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if not (c:IsRelateToEffect(e) and tc:IsRelateToEffect(e) and tc:IsControler(1-tp)) then return end
	local zone=c:GetLinkedZone()&ZONES_MMZ
	if Duel.GetControl(tc,tp,0,0,zone) then
		local turn_ct=Duel.GetTurnCount()
		--Send it to the GY during the End Phase of the next turn
		aux.DelayedOperation(tc,PHASE_END,id,e,tp,
			function(ag)
				Duel.SendtoGrave(ag,REASON_EFFECT)
			end,
			function()
				return Duel.GetTurnCount()==turn_ct+1
			end,
			nil,2
		)
	end
end