--屍の合星
--Nightmare Xyz
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetHintTiming(TIMING_END_PHASE,TIMING_END_PHASE)
	e1:SetCondition(s.condition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
	aux.GlobalCheck(s,function()
		s[0]=true
		s[1]=true
		--check
		local ge1=Effect.CreateEffect(c)
		ge1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
		ge1:SetCode(EVENT_DESTROYED)
		ge1:SetProperty(EFFECT_FLAG_DAMAGE_STEP)
		ge1:SetOperation(s.checkop)
		Duel.RegisterEffect(ge1,0)
		aux.AddValuesReset(function()
			s[0]=false
			s[1]=false
		end)
	end)
end 
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	return Duel.GetCurrentPhase()==PHASE_END and s[tp]
end
s.listed_series={0x48}
function s.cfilter(c)
	return c:IsSetCard(SET_NUMBER) and c:IsPreviousLocation(LOCATION_ONFIELD) and c:IsPreviousPosition(POS_FACEUP) 
		and (c:GetReason()&REASON_DESTROY)==REASON_DESTROY
end
function s.checkop(e,tp,eg,ep,ev,re,r,rp)
	local g=eg:Filter(s.cfilter,nil)
	g:ForEach(function(tc)
		s[tc:GetPreviousControler()]=true
	end)
end
function s.filter(c,e,tp,ft,g,pg)
	local ct=c.minxyzct
	return ft>=ct and c:IsRankBelow(4) and c:IsAttribute(ATTRIBUTE_DARK) and c:IsRace(RACE_FIEND) and c:IsType(TYPE_XYZ) 
		and c:IsCanBeSpecialSummoned(e,SUMMON_TYPE_XYZ,tp,false,false)
		and aux.SelectUnselectGroup(g,e,tp,ct,ct,aux.FilterBoolFunction(Group.Includes,pg),0)
end
function s.spfilter(c,e,tp)
	return c:IsAttribute(ATTRIBUTE_DARK) and c:GetLevel()>0 and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	local g=Duel.GetMatchingGroup(s.spfilter,tp,LOCATION_GRAVE,0,nil,e,tp)
	local ft=Duel.GetLocationCount(tp,LOCATION_MZONE)
	local pg=aux.GetMustBeMaterialGroup(tp,g,tp,nil,nil,REASON_XYZ)
	if chkc then return chkc:IsControler(tp) and chkc:IsLocation(LOCATION_EXTRA) and s.filter(chkc,e,tp,ft,g,pg) end
	if chk==0 then return ft>0 and Duel.GetLocationCountFromEx(tp,tp,nil,TYPE_XYZ)>0
		and Duel.IsExistingMatchingCard(s.filter,tp,LOCATION_EXTRA,0,1,nil,e,tp,ft,g,pg) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectMatchingCard(tp,s.filter,tp,LOCATION_EXTRA,0,1,1,nil,e,tp,ft,g,pg)
	Duel.SetTargetCard(g)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,0,0)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsRelateToEffect(e) and Duel.GetLocationCountFromEx(tp,tp,nil,TYPE_XYZ)>0 then
		local ft=Duel.GetLocationCount(tp,LOCATION_MZONE)
		local ct=tc.minxyzct
		local ct2=tc.maxxyzct
		if Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT) then if ct>1 then return end ct2=math.min(ct2,1) end
		if ft<ct then return end
		if ft<ct2 then ct2=ft end
		local g=Duel.GetMatchingGroup(s.spfilter,tp,LOCATION_GRAVE,0,nil,e,tp)
		local pg=aux.GetMustBeMaterialGroup(tp,g,tp,nil,nil,REASON_XYZ)
		local sg=aux.SelectUnselectGroup(g,e,tp,ct,ct2,aux.FilterBoolFunction(Group.Includes,pg),1,tp,HINTMSG_SPSUMMON)
		if #sg<=0 then return end
		sg:ForEach(function(sc)
			Duel.SpecialSummonStep(sc,0,tp,tp,false,false,POS_FACEUP)
			local e1=Effect.CreateEffect(e:GetHandler())
			e1:SetType(EFFECT_TYPE_SINGLE)
			e1:SetCode(EFFECT_CHANGE_LEVEL)
			e1:SetValue(tc:GetRank())
			e1:SetReset(RESET_EVENT+RESETS_STANDARD)
			sc:RegisterEffect(e1)
			sc=sg:GetNext()
		end)
		Duel.SpecialSummonComplete()
		Duel.BreakEffect()
		tc:SetMaterial(sg)
		Duel.Overlay(tc,sg)
		Duel.SpecialSummon(tc,SUMMON_TYPE_XYZ,tp,tp,false,false,POS_FACEUP)
		tc:CompleteProcedure()
	end
end