--Number Return
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCondition(s.condition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	local ph=Duel.GetCurrentPhase()
	return Duel.IsTurnPlayer(tp) and (ph==PHASE_MAIN1 or ph==PHASE_MAIN2)
end
function s.filter(c,e,tp)
	local ct=c.minxyzct
	return c:IsSetCard(SET_NUMBER) and c:IsType(TYPE_XYZ)
		and c:IsCanBeSpecialSummoned(e,0,tp,false,false) and ct
		and Duel.IsExistingMatchingCard(s.atfilter,tp,LOCATION_GRAVE,0,ct,c)
end
function s.atfilter(c)
	return c:IsSetCard(SET_NUMBER) and c:IsMonster()
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingMatchingCard(s.filter,tp,LOCATION_GRAVE,0,1,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_GRAVE)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<=0 then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(s.filter),tp,LOCATION_GRAVE,0,1,1,nil,e,tp)
	local tc=g:GetFirst()
	if tc then
		Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)
		local ct=tc.minxyzct
		local ct2=tc.maxxyzct
		local g=Duel.GetMatchingGroup(aux.NecroValleyFilter(s.atfilter),tp,LOCATION_GRAVE,0,nil)
		if ct2==Xyz.InfiniteMats then ct2=#g end
		Duel.Overlay(tc,g:Select(tp,ct,ct2,nil))
	end
end
