--エーリアン・バスター
--Alien Stealthbuster
--scripted by pyrQ
local s,id=GetID()
function s.initial_effect(c)
	--Place 2 A-Counters
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_COUNTER)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET+EFFECT_FLAG_DAMAGE_STEP+EFFECT_FLAG_DELAY)
	e1:SetCode(EVENT_TO_GRAVE)
	e1:SetCountLimit(1,id)
	e1:SetTarget(s.cttg)
	e1:SetOperation(s.ctop)
	c:RegisterEffect(e1)
	--Destroy 1 card with an A-Counter
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_DESTROY)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetCountLimit(1,{id,1})
	e2:SetCondition(aux.exccon)
	e2:SetCost(Cost.SelfBanish)
	e2:SetTarget(s.destg)
	e2:SetOperation(s.desop)
	c:RegisterEffect(e2)
end
s.counter_place_list={COUNTER_A}
function s.cttg(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)
	local g=Duel.SelectTarget(tp,Card.IsFaceup,tp,LOCATION_MZONE,LOCATION_MZONE,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_COUNTER,g,1,COUNTER_A,1)
end
function s.ctop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsFaceup() and tc:IsRelateToEffect(e) then
		tc:AddCounter(COUNTER_A,2)
	end
end
function s.desfilter(c)
	return c:IsFaceup() and c:GetCounter(COUNTER_A)>0
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_ONFIELD) and s.desfilter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.desfilter,tp,LOCATION_ONFIELD,LOCATION_ONFIELD,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local g=Duel.SelectTarget(tp,s.desfilter,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:IsRelateToEffect(e) then
		Duel.Destroy(tc,REASON_EFFECT)
	end
end