--Mitsurugi Sacred Boundary
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)
	c:RegisterEffect(e1)
	--Cannot target
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD)
	e2:SetCode(EFFECT_CANNOT_BE_EFFECT_TARGET)
	e2:SetRange(LOCATION_SZONE)
	e2:SetProperty(EFFECT_FLAG_IGNORE_IMMUNE)
	e2:SetTargetRange(LOCATION_MZONE,0)
	e2:SetTarget(s.tfilter)
	e2:SetValue(s.evalue)
	c:RegisterEffect(e2)
	--to deck
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,1))
	e3:SetCategory(CATEGORY_TODECK)
	e3:SetType(EFFECT_TYPE_IGNITION)
	e3:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e3:SetRange(LOCATION_SZONE)
	e3:SetCountLimit(1,id)
	e3:SetTarget(s.tdtg)
	e3:SetOperation(s.tdop)
	c:RegisterEffect(e3)
end
function s.tfilter(e,c)
	return c:IsType(TYPE_RITUAL) and c:IsSetCard(0x1c3)
end
function s.evalue(e,re,rp)
	return re:IsActiveType(TYPE_MONSTER) and re:GetHandler():IsSummonLocation(LOCATION_EXTRA) and rp==1-e:GetHandlerPlayer()
end
function s.tdfilter(c)
	return not c:IsCode(id) and c:IsSetCard(0x1c3) and c:IsAbleToDeck()
end
function s.tdtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.tdfilter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.tdfilter,tp,LOCATION_GRAVE,0,4,nil)
		and (Duel.GetFieldGroup(tp,0,LOCATION_MZONE)==0 or Duel.IsPlayerCanRelease(1-tp)) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TODECK)
	local g=Duel.SelectTarget(tp,s.tdfilter,tp,LOCATION_GRAVE,0,4,4,nil)
	Duel.SetOperationInfo(0,CATEGORY_TODECK,g,g:GetCount(),0,0)
end
function s.tdop(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetChainInfo(0,CHAININFO_TARGET_CARDS):Filter(aux.NecroValleyFilter(Card.IsRelateToChain),nil)
	if g:GetCount()>0 and Duel.SendtoDeck(g,nil,SEQ_DECKSHUFFLE,REASON_EFFECT) then
		local og=Duel.GetOperatedGroup()
		if og:IsExists(Card.IsLocation,1,nil,LOCATION_DECK+LOCATION_EXTRA)
			and Duel.CheckReleaseGroupEx(1-tp,nil,1,REASON_RULE,false,nil) then
			local sg=Duel.SelectReleaseGroupEx(1-tp,nil,1,1,REASON_RULE,false,nil)
			if sg:GetCount()>0 then
				Duel.BreakEffect()
				Duel.HintSelection(sg)
				Duel.Release(sg,REASON_RULE,1-tp)
			end
		end
	end
end