Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
[ Pendulum Effect ] Once per turn, if your DARK Spellcaster-Type monster battles, before damage calculation: You can activate this effect; that monster gains 1200 ATK (until the end of the Damage Step), then destroy this card. ---------------------------------------- [ Monster Effect ] (This card is always treated as a "Fusion Dragon" card.) If this card is destroyed by battle or card effect: You can target 1 face-up card on the field; destroy it.
--紫毒の魔術師
--Purple Poison Magician
local s,id=GetID()
function s.initial_effect(c)
	Pendulum.AddProcedure(c)
	--Increase ATK
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_ATKCHANGE+CATEGORY_DESTROY)
	e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e1:SetRange(LOCATION_PZONE)
	e1:SetCode(EVENT_BATTLE_CONFIRM)
	e1:SetCountLimit(1)
	e1:SetCondition(s.atkcon)
	e1:SetTarget(s.atktg)
	e1:SetOperation(s.atkop)
	c:RegisterEffect(e1)
	--Destroy
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,1))
	e3:SetCategory(CATEGORY_DESTROY)
	e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e3:SetProperty(EFFECT_FLAG_DELAY+EFFECT_FLAG_CARD_TARGET)
	e3:SetCode(EVENT_DESTROYED)
	e3:SetCondition(s.descon)
	e3:SetTarget(s.destg)
	e3:SetOperation(s.desop)
	c:RegisterEffect(e3)
end
function s.atkcon(e,tp,eg,ep,ev,re,r,rp)
	local a=Duel.GetAttacker()
	if not a:IsControler(tp) then
		a=Duel.GetAttackTarget()
	end
	return a and a:IsAttribute(ATTRIBUTE_DARK) and a:IsRace(RACE_SPELLCASTER)
end
function s.atktg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,e:GetHandler(),1,0,0)
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 tc=Duel.GetAttacker()
	if not tc then return end
	if tc:IsControler(1-tp) then tc=Duel.GetAttackTarget() end
	if tc:IsRelateToBattle() and not tc:IsImmuneToEffect(e) then
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		e1:SetValue(1200)
		e1:SetReset(RESET_PHASE|PHASE_DAMAGE)
		tc:RegisterEffect(e1)
		Duel.BreakEffect()
		Duel.Destroy(c,REASON_EFFECT)
	end
end
function s.descon(e,tp,eg,ep,ev,re,r,rp)
	return r&REASON_EFFECT+REASON_BATTLE~=0
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsOnField() and chkc:IsFaceup() end
	if chk==0 then return Duel.IsExistingTarget(Card.IsFaceup,tp,LOCATION_ONFIELD,LOCATION_ONFIELD,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local g=Duel.SelectTarget(tp,Card.IsFaceup,tp,LOCATION_ONFIELD,LOCATION_ONFIELD,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,g,1,0,0)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsRelateToEffect(e) then
		Duel.Destroy(tc,REASON_EFFECT)
	end
end