Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
2+ Level 8 monsters Once per turn, during your Standby Phase: You can attach 1 card from your opponent's GY to this card as material. You can only use each of the following effects of "Number 1: Infection Buzzking" once per turn. If this card is Xyz Summoned: You can look at your opponent's Extra Deck and send 1 card from it to the GY. You can detach 1 material from this card, then target 1 card your opponent controls; destroy it, then if you destroyed a face-up monster, inflict damage to your opponent equal to half the ATK it had on the field.
--Ｎｏ．１ インフェクション・バアル・ゼブル
--Number 1: Infection Buzzking
--scripted by pyrQ, adapted from the anime script
local s,id=GetID()
function s.initial_effect(c)
	c:EnableReviveLimit()
	--Xyz Summon procedure
	Xyz.AddProcedure(c,nil,8,2,nil,nil,Xyz.InfiniteMats)
	--Attach 1 card from your opponent's GY to this card
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_LEAVE_GRAVE)
	e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_PHASE|PHASE_STANDBY)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCountLimit(1)
	e1:SetCondition(function(_,tp) return Duel.IsTurnPlayer(tp) end)
	e1:SetTarget(s.mattg)
	e1:SetOperation(s.matop)
	c:RegisterEffect(e1)
	--Look at your opponent's Extra Deck
	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:SetProperty(EFFECT_FLAG_DELAY)
	e2:SetCode(EVENT_SPSUMMON_SUCCESS)
	e2:SetCountLimit(1,id)
	e2:SetCondition(function(e) return e:GetHandler():IsXyzSummoned() end)
	e2:SetTarget(s.tgtg)
	e2:SetOperation(s.tgop)
	c:RegisterEffect(e2)
	--Destroy 1 card your opponent controls
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,2))
	e3:SetCategory(CATEGORY_DESTROY+CATEGORY_DAMAGE)
	e3:SetType(EFFECT_TYPE_IGNITION)
	e3:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e3:SetRange(LOCATION_MZONE)
	e3:SetCountLimit(1,{id,1})
	e3:SetCost(Cost.DetachFromSelf(1,1,nil))
	e3:SetTarget(s.destg)
	e3:SetOperation(s.desop)
	c:RegisterEffect(e3)
end
s.xyz_number=1
function s.mattg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(nil,tp,0,LOCATION_GRAVE,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_LEAVE_GRAVE,nil,1,1-tp,0)
end
function s.matop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if not c:IsRelateToEffect(e) then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_XMATERIAL)
	local g=Duel.SelectMatchingCard(tp,nil,tp,0,LOCATION_GRAVE,1,1,nil)
	if #g>0 then
		Duel.HintSelection(g,true)
		Duel.Overlay(c,g)
	end
end
function s.tgtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(Card.IsAbleToGrave,tp,0,LOCATION_EXTRA,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_TOGRAVE,nil,1,1-tp,LOCATION_EXTRA)
end
function s.tgop(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetFieldGroup(tp,0,LOCATION_EXTRA)
	if #g==0 then return end
	Duel.ConfirmCards(tp,g)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TOGRAVE)
	local g=Duel.SelectMatchingCard(tp,Card.IsAbleToGrave,tp,0,LOCATION_EXTRA,1,1,nil)
	if #g>0 then
		Duel.SendtoGrave(g,REASON_EFFECT)
	end
	Duel.ShuffleExtra(1-tp)
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsOnField() and chkc:IsControler(1-tp) end
	if chk==0 then return Duel.IsExistingTarget(nil,tp,0,LOCATION_ONFIELD,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local tc=Duel.SelectTarget(tp,nil,tp,0,LOCATION_ONFIELD,1,1,nil):GetFirst()
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,tc,1,tp,0)
	if tc:IsMonster() then
		if tc:IsFaceup() then
			Duel.SetOperationInfo(0,CATEGORY_DAMAGE,nil,0,1-tp,tc:GetAttack()/2)
		else
			Duel.SetPossibleOperationInfo(0,CATEGORY_DAMAGE,nil,0,1-tp,0)
		end
	end
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if not tc:IsRelateToEffect(e) then return end
	local dam=0
	if tc:IsMonster() and tc:IsFaceup() then
		dam=tc:GetAttack()/2
	end
	if Duel.Destroy(tc,REASON_EFFECT)>0 and dam>0 then
		Duel.BreakEffect()
		Duel.Damage(1-tp,dam,REASON_EFFECT)
	end
end