--ライト・オブ・デストラクション
--Light of Destruction
local s,id=GetID()
function s.initial_effect(c)
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	c:RegisterEffect(e1)
	--discard deck
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_F)
	e2:SetCategory(CATEGORY_DECKDES)
	e2:SetCode(EVENT_TO_GRAVE)
	e2:SetRange(LOCATION_SZONE)
	e2:SetCondition(s.condtion)
	e2:SetTarget(s.target)
	e2:SetOperation(s.operation)
	c:RegisterEffect(e2)
end
function s.cfilter(c,tp)
	return c:IsPreviousLocation(LOCATION_DECK) and c:IsPreviousControler(tp)
end
function s.condtion(e,tp,eg,ep,ev,re,r,rp)
	if not re then return false end
	local rc=re:GetHandler()
	return rp~=tp and (r&REASON_EFFECT)~=0 and eg:IsExists(s.cfilter,1,nil,1-tp)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return e:GetHandler():IsRelateToEffect(e) end
	Duel.SetOperationInfo(0,CATEGORY_DECKDES,nil,0,1-tp,3)
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	if not e:GetHandler():IsRelateToEffect(e) then return end
	Duel.DiscardDeck(1-tp,3,REASON_EFFECT)
end