--created by Windy Gurls, coded by Lyris
local s,id=GetID()
function s.initial_effect(c)
	local e1=aux.AddRitualProcEqual2(c,aux.FilterBoolFunction(Card.IsSetCard,0xa40))
	e1:SetCountLimit(1,id+EFFECT_COUNT_CODE_OATH)
	e1:SetOperation(s.activate)
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetCategory(CATEGORY_SEARCH+CATEGORY_TOHAND+CATEGORY_COUNTER)
	e2:SetCost(aux.bfgcost)
	e2:SetTarget(s.target)
	e2:SetOperation(s.operation)
	c:RegisterEffect(e2)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local mg=Duel.GetRitualMaterial(tp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local tg=Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(aux.RitualUltimateFilter),tp,LOCATION_HAND,0,1,1,nil,aux.FilterBoolFunction(Card.IsSetCard,0xa40),e,tp,mg,nil,Card.GetLevel,"Equal")
	local tc=tg:GetFirst()
	if tc then
		mg=mg:Filter(Card.IsCanBeRitualMaterial,tc,tc)
		if tc.mat_filter then
			mg=mg:Filter(tc.mat_filter,tc,tp)
		else
			mg:RemoveCard(tc)
		end
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_RELEASE)
		local lv=Card.GetLevel(tc)
		aux.GCheckAdditional=aux.RitualCheckAdditional(tc,lv,"Equal")
		local mat=mg:SelectSubGroup(tp,aux.RitualCheck,false,1,lv,tp,tc,lv,"Equal")
		aux.GCheckAdditional=nil
		tc:SetMaterial(mat)
		Duel.ReleaseRitualMaterial(mat)
		Duel.BreakEffect()
		if Duel.SpecialSummon(tc,SUMMON_TYPE_RITUAL,tp,tp,false,true,POS_FACEUP)==0 then return end
		tc:CompleteProcedure()
		if tc:IsCanAddCounter(0x1015,1) and Duel.SelectEffectYesNo(tp,e:GetHandler()) then
			Duel.BreakEffect()
			tc:AddCounter(0x1015,1)
		end
	end
end
function s.filter(c)
	return c:GetType()&0x81==0x81 and c:IsSetCard(0xa40) and c:IsAbleToHand()
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.filter,tp,LOCATION_DECK,0,1,nil)
		and Duel.IsExistingMatchingCard(Card.IsCanAddCounter,tp,LOCATION_MZONE,LOCATION_MZONE,1,nil,0x1015,1) end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,tp,1,LOCATION_DECK)
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectMatchingCard(tp,s.filter,tp,LOCATION_DECK,0,1,1,nil)
	if Duel.SendtoHand(g,nil,REASON_EFFECT)==0 or not g:GetFirst():IsLocation(LOCATION_HAND) then return end
	Duel.ConfirmCards(1-tp,g)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_COUNTER)
	local tc=Duel.SelectMatchingCard(tp,Card.IsCanAddCounter,tp,LOCATION_MZONE,LOCATION_MZONE,1,1,nil,0x1015,1):GetFirst()
	if tc then
		Duel.BreakEffect()
		tc:AddCounter(0x1015,1)
	end
end