local cm,m=GetID()
cm.name="一时风锁"
function cm.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_TODECK+CATEGORY_GRAVE_ACTION+CATEGORY_RECOVER)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_CUSTOM+m)
	e1:SetProperty(EFFECT_FLAG_DELAY+EFFECT_FLAG_PLAYER_TARGET)
	e1:SetCondition(cm.condition)
	e1:SetTarget(cm.target)
	e1:SetOperation(cm.activate)
	c:RegisterEffect(e1)
	--Event
	if not cm.global_check then
		cm.global_check=true
		local ge1=Effect.CreateEffect(c)
		ge1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
		ge1:SetCode(EVENT_TO_GRAVE)
		ge1:SetOperation(cm.event)
		Duel.RegisterEffect(ge1,0)
	end
end
--Activate
function cm.filter(c,tp)
	return c:IsPreviousControler(tp)
end
function cm.condition(e,tp,eg,ep,ev,re,r,rp)
	return eg:IsExists(cm.filter,1,nil,1-tp)
end
function cm.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsPlayerCanDiscardDeck(tp,4) end
	RD.TargetDiscardDeck(tp,4)
end
function cm.activate(e,tp,eg,ep,ev,re,r,rp)
	if RD.DiscardDeck()==0 then return end
	local g=Duel.GetFieldGroup(tp,0,LOCATION_HAND)
	if g:GetCount()>0 and Duel.SelectYesNo(tp,aux.Stringid(m,1)) then
		Duel.BreakEffect()
		local sg=g:RandomSelect(1-tp,1)
		RD.SendToDeckAndExists(sg,e,tp,REASON_EFFECT)
	end
end
--Event
function cm.event(e,tp,eg,ep,ev,re,r,rp)
	local g=eg:Filter(Card.IsPreviousLocation,nil,LOCATION_DECK)
	if g:GetCount()>0 then
		Duel.RaiseEvent(g,EVENT_CUSTOM+m,re,r,rp,ep,ev)
	end
end