--Receive Ace
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_DAMAGE+CATEGORY_DECKDES)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e1:SetCode(EVENT_ATTACK_ANNOUNCE)
	e1:SetCondition(s.condition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	local at=Duel.GetAttacker()
	return at:GetControler()~=tp and Duel.GetAttackTarget()==nil
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsPlayerCanDiscardDeck(tp,3) end
	Duel.SetTargetPlayer(1-tp)
	Duel.SetTargetParam(1500)
	Duel.SetOperationInfo(0,CATEGORY_DAMAGE,nil,0,1-tp,1500)
	Duel.SetOperationInfo(0,CATEGORY_DECKDES,nil,0,tp,3)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	if Duel.NegateAttack() then
		local p,d=Duel.GetChainInfo(0,CHAININFO_TARGET_PLAYER,CHAININFO_TARGET_PARAM)
		Duel.Damage(p,d,REASON_EFFECT)
		Duel.DiscardDeck(1-p,3,REASON_EFFECT)
	end
end