--created by NeverThisAgain, coded by Lyris
local s,id=GetID()
function s.initial_effect(c)
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetLabel(0)
	e1:SetCost(s.cost)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
	e2:SetCode(EFFECT_DESTROY_REPLACE)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetTarget(s.reptg)
	e2:SetValue(s.repval)
	e2:SetOperation(s.repop)
	c:RegisterEffect(e2)
end
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	e:SetLabel(100)
	return true
end
function s.filter1(c,e,tp,ft)
	local lv=c:GetLevel()
	return c:IsFaceup() and c:IsSetCard(0x50b)
		and (ft>0 or c:GetSequence()<5) and c:IsControler(tp)
		and Duel.IsExistingMatchingCard(s.filter2,tp,LOCATION_DECK,0,1,nil,lv,e,tp)
end
function s.filter2(c,lv,e,tp)
	return c:IsSetCard(0x50b) and not c:IsLevel(lv) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	local ft=Duel.GetLocationCount(tp,LOCATION_MZONE)
	if chk==0 then
		if e:GetLabel()~=100 then return false end
		e:SetLabel(0)
		return ft>-1 and Duel.CheckReleaseGroup(tp,s.filter1,1,nil,e,tp,ft)
	end
	local rg=Duel.SelectReleaseGroup(tp,s.filter1,1,1,nil,e,tp,ft)
	e:SetLabel(rg:GetFirst():GetLevel())
	Duel.Release(rg,REASON_COST)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_DECK)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<=0 then return end
	local lv=e:GetLabel()
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectMatchingCard(tp,s.filter2,tp,LOCATION_DECK,0,1,1,nil,lv,e,tp)
	if #g>0 then
		Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP)
	end
end
function s.repfilter(c,tp)
	return c:IsFaceup() and c:IsSetCard(0x50b) and c:IsLocation(LOCATION_ONFIELD)
		and c:IsControler(tp) and c:IsReason(REASON_EFFECT) and not c:IsReason(REASON_REPLACE)
end
function s.reptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return e:GetHandler():IsAbleToRemove() and eg:IsExists(s.repfilter,1,nil,tp) end
	return Duel.SelectEffectYesNo(tp,e:GetHandler(),96)
end
function s.repval(e,c)
	return s.repfilter(c,e:GetHandlerPlayer())
end
function s.repop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Remove(e:GetHandler(),POS_FACEUP,REASON_EFFECT)
end