--Black Rose Ivy of the Signer Dragon
local cid,id=GetID()
function cid.initial_effect(c)
	--salvage
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_EXTRA)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetProperty(EFFECT_FLAG_DELAY+EFFECT_FLAG_CARD_TARGET)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetTarget(cid.thtg)
	e1:SetOperation(cid.thop)
	e1:SetCountLimit(1,id)
	c:RegisterEffect(e1)
	local e3=e1:Clone()
	e3:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e3)
	--change level
	local e4=Effect.CreateEffect(c)
	e4:SetDescription(aux.Stringid(id,1))
	e4:SetType(EFFECT_TYPE_IGNITION)
	e4:SetRange(LOCATION_MZONE)
	e4:SetTarget(cid.target)
	e4:SetOperation(cid.operation)
	e4:SetCountLimit(1,id+100)
	c:RegisterEffect(e4)
end
--SALVAGE
function cid.filter(c)
	return (not c:IsLocation(LOCATION_REMOVED) or c:IsFaceup()) and c:IsType(TYPE_SYNCHRO) and c:IsType(TYPE_MONSTER) and c:IsAbleToExtra()
end
function cid.thtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	local ct=Duel.GetMatchingGroupCount(function(c) return c:IsFaceup() and c:IsSetCard(0xcd01) end,tp,LOCATION_MZONE,0,nil)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE+LOCATION_REMOVED) and cid.filter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(cid.filter,tp,LOCATION_GRAVE+LOCATION_REMOVED,LOCATION_GRAVE+LOCATION_REMOVED,1,nil) and ct>0 end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TODECK)
	local g=Duel.SelectTarget(tp,aux.NecroValleyFilter(cid.filter),tp,LOCATION_GRAVE+LOCATION_REMOVED,LOCATION_GRAVE+LOCATION_REMOVED,1,ct,nil)
	Duel.SetOperationInfo(0,CATEGORY_TODECK,g,#g,0,0)
end
function cid.thop(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetChainInfo(0,CHAININFO_TARGET_CARDS):Filter(Card.IsRelateToEffect,nil,e)
	if #g<=0 then return end
	Duel.SendtoDeck(g,nil,2,REASON_EFFECT)
end
--CHANGE LEVEL
function cid.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return not e:GetHandler():IsLevel(4) end
end
function cid.operation(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_CHANGE_LEVEL)
	e1:SetValue(4)
	e1:SetReset(RESET_EVENT+RESETS_STANDARD+RESET_DISABLE+RESET_PHASE+PHASE_END)
	c:RegisterEffect(e1)
end