local cm,m=GetID()
local list={120293038}
cm.name="混沌祭具"
function cm.initial_effect(c)
	RD.AddCodeList(c,list)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_SEARCH+CATEGORY_TOHAND+CATEGORY_GRAVE_ACTION)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetTarget(cm.target)
	e1:SetOperation(cm.activate)
	c:RegisterEffect(e1)
end
--Activate
function cm.filter(c)
	return c:IsCode(list[1]) and c:IsAbleToHand()
end
function cm.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetFieldGroupCount(tp,LOCATION_DECK,0)>2 end
end
function cm.activate(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetFieldGroupCount(tp,LOCATION_DECK,0)<3 then return end
	local mg=Duel.GetMatchingGroup(aux.NecroValleyFilter(cm.filter),tp,LOCATION_GRAVE,0,nil)
	local sg,g=RD.RevealDeckTopAndCanSelectEx(tp,3,mg,aux.Stringid(m,1),HINTMSG_ATOHAND,cm.filter,1,1)
	if sg:GetCount()>0 then
		Duel.DisableShuffleCheck()
		RD.SendToHandAndExists(sg,e,tp,REASON_EFFECT)
		Duel.ShuffleHand(tp)
	end
	local ct=g:GetCount()
	if ct>0 then
		Duel.SortDecktop(tp,tp,ct)
		RD.SendDeckTopToBottom(tp,ct)
	end
end