--竜星の輝跡
function c17183908.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_TODECK+CATEGORY_DRAW)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetCountLimit(1,17183908+EFFECT_COUNT_CODE_OATH)
	e1:SetTarget(c17183908.target)
	e1:SetOperation(c17183908.operation)
	c:RegisterEffect(e1)
end
function c17183908.filter(c)
	return c:IsSetCard(0x9e) and c:IsType(TYPE_MONSTER) and c:IsAbleToDeck()
end
function c17183908.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and c17183908.filter(chkc) end
	if chk==0 then return Duel.IsPlayerCanDraw(tp,2)
		and Duel.IsExistingTarget(c17183908.filter,tp,LOCATION_GRAVE,0,3,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TODECK)
	local g=Duel.SelectTarget(tp,c17183908.filter,tp,LOCATION_GRAVE,0,3,3,nil)
	Duel.SetOperationInfo(0,CATEGORY_TODECK,g,3,0,0)
	Duel.SetOperationInfo(0,CATEGORY_DRAW,nil,0,tp,2)
end
function c17183908.operation(e,tp,eg,ep,ev,re,r,rp)
	local tg=Duel.GetChainInfo(0,CHAININFO_TARGET_CARDS)
	if not tg or tg:FilterCount(Card.IsRelateToEffect,nil,e)~=3 then return end
	Duel.SendtoDeck(tg,nil,0,REASON_EFFECT)
	local g=Duel.GetOperatedGroup()
	if g:IsExists(Card.IsLocation,1,nil,LOCATION_DECK) then Duel.ShuffleDeck(tp) end
	local ct=g:FilterCount(Card.IsLocation,nil,LOCATION_DECK+LOCATION_EXTRA)
	if ct==3 then
		Duel.BreakEffect()
		Duel.Draw(tp,2,REASON_EFFECT)
	end
end