--閃光のバリア －シャイニング・フォース－
function c21481146.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_DESTROY)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_ATTACK_ANNOUNCE)
	e1:SetCondition(c21481146.condition)
	e1:SetTarget(c21481146.target)
	e1:SetOperation(c21481146.activate)
	c:RegisterEffect(e1)
end
function c21481146.condition(e,tp,eg,ep,ev,re,r,rp)
	return tp~=Duel.GetTurnPlayer() and Duel.IsExistingMatchingCard(Card.IsPosition,tp,0,LOCATION_MZONE,3,nil,POS_FACEUP_ATTACK)
end
function c21481146.filter(c)
	return c:IsAttackPos()
end
function c21481146.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(c21481146.filter,tp,0,LOCATION_MZONE,1,nil) end
	local g=Duel.GetMatchingGroup(c21481146.filter,tp,0,LOCATION_MZONE,nil)
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,g,g:GetCount(),0,0)
end
function c21481146.activate(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetMatchingGroup(c21481146.filter,tp,0,LOCATION_MZONE,nil)
	if g:GetCount()>0 then
		Duel.Destroy(g,REASON_EFFECT)
	end
end
