--幾星霜
--Scripted by zengsxing
local s,id,o=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCountLimit(1,id)
	e1:SetCondition(s.conditon)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
	--to hand
	local e2=Effect.CreateEffect(c)
	e2:SetCategory(CATEGORY_TOHAND)
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e2:SetProperty(EFFECT_FLAG_DELAY)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetCountLimit(1,id)
	e2:SetCode(EVENT_TO_DECK)
	e2:SetCondition(s.thcon)
	e2:SetTarget(s.thtg)
	e2:SetOperation(s.thop)
	c:RegisterEffect(e2)
	if not s.global_check then
		s.global_check=true
		local ge1=Effect.CreateEffect(c)
		ge1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
		ge1:SetCode(EVENT_DESTROY)
		ge1:SetOperation(s.descheck)
		Duel.RegisterEffect(ge1,0)
	end
end
function s.descheck(e,tp,eg,ep,ev,re,r,rp)
	for tc in aux.Next(eg) do
		if tc:IsLocation(LOCATION_MZONE) and r&REASON_EFFECT>0 and Duel.GetFlagEffect(tc:GetControler(),id)==0 then
			if re~=nil and re:GetHandler():IsType(TYPE_SPELL) or tc:GetReasonPlayer()==1-tc:GetControler() then
				Duel.RegisterFlagEffect(tc:GetControler(),id,RESET_PHASE+PHASE_END,0,1)
			end
		end
	end
end
function s.conditon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.GetFlagEffect(tp,id)>0
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local e1=Effect.CreateEffect(e:GetHandler())
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_BP_TWICE)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e1:SetTargetRange(1,0)
	if Duel.GetTurnPlayer()==tp and (Duel.GetCurrentPhase()>=PHASE_BATTLE_START and Duel.GetCurrentPhase()<=PHASE_BATTLE) then
		e1:SetLabel(Duel.GetTurnCount())
		e1:SetCondition(s.bpcon)
		e1:SetReset(RESET_PHASE+PHASE_BATTLE+RESET_SELF_TURN,2)
	else
		e1:SetReset(RESET_PHASE+PHASE_BATTLE+RESET_SELF_TURN,1)
	end
	Duel.RegisterEffect(e1,tp)
end
function s.bpcon(e)
	return Duel.GetTurnCount()~=e:GetLabel()
end
function s.cfilter(c,tp)
	return c:IsPreviousControler(tp) and c:IsType(TYPE_MONSTER)
		and c:IsPreviousLocation(LOCATION_MZONE) and (c:IsFacedown() or c:IsLocation(LOCATION_DECK))
end
function s.thcon(e,tp,eg,ep,ev,re,r,rp)
	return eg:IsExists(s.cfilter,1,nil,tp)
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return e:GetHandler():IsAbleToHand() end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,e:GetHandler(),1,0,0)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsRelateToEffect(e) then
		Duel.SendtoHand(c,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,c)
	end
end