--オッドアイズ・アドベント
function c16494704.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:SetCountLimit(1,16494704+EFFECT_COUNT_CODE_OATH)
	e1:SetTarget(c16494704.target)
	e1:SetOperation(c16494704.operation)
	c:RegisterEffect(e1)
end
function c16494704.exfilter0(c)
	return c:IsSetCard(0x99) and c:GetLevel()>=1 and c:IsAbleToGrave()
end
function c16494704.filter(c,e,tp,m,ft)
	if not c:IsRace(RACE_DRAGON) or bit.band(c:GetType(),0x81)~=0x81
		or not c:IsCanBeSpecialSummoned(e,SUMMON_TYPE_RITUAL,tp,false,true) then return false end
	local mg=m:Filter(Card.IsCanBeRitualMaterial,c,c)
	if c.mat_filter then
		mg=mg:Filter(c.mat_filter,nil)
	end
	if ft>0 then
		return mg:CheckWithSumGreater(Card.GetRitualLevel,c:GetLevel(),c)
	else
		return mg:IsExists(c16494704.mfilterf,1,nil,tp,mg,c)
	end
end
function c16494704.mfilterf(c,tp,mg,rc)
	if c:IsControler(tp) and c:IsLocation(LOCATION_MZONE) then
		Duel.SetSelectedCard(c)
		return mg:CheckWithSumGreater(Card.GetRitualLevel,rc:GetLevel(),rc)
	else return false end
end
function c16494704.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then
		local mg=Duel.GetRitualMaterial(tp):Filter(Card.IsType,nil,TYPE_PENDULUM)
		if Duel.GetFieldGroupCount(tp,LOCATION_MZONE,0)==0 and Duel.GetFieldGroupCount(tp,0,LOCATION_MZONE)>1 then
			local sg=Duel.GetMatchingGroup(c16494704.exfilter0,tp,LOCATION_EXTRA,0,nil)
			mg:Merge(sg)
		end
		local ft=Duel.GetLocationCount(tp,LOCATION_MZONE)
		return ft>-1 and Duel.IsExistingMatchingCard(c16494704.filter,tp,LOCATION_HAND+LOCATION_GRAVE,0,1,nil,e,tp,mg,ft)
	end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_HAND+LOCATION_GRAVE)
end
function c16494704.operation(e,tp,eg,ep,ev,re,r,rp)
	local mg=Duel.GetRitualMaterial(tp):Filter(Card.IsType,nil,TYPE_PENDULUM)
	if Duel.GetFieldGroupCount(tp,LOCATION_MZONE,0)==0 and Duel.GetFieldGroupCount(tp,0,LOCATION_MZONE)>1 then
		local sg=Duel.GetMatchingGroup(c16494704.exfilter0,tp,LOCATION_EXTRA,0,nil)
		mg:Merge(sg)
	end
	local ft=Duel.GetLocationCount(tp,LOCATION_MZONE)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local tg=Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(c16494704.filter),tp,LOCATION_HAND+LOCATION_GRAVE,0,1,1,nil,e,tp,mg,ft)
	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,nil)
		end
		local mat=nil
		if ft>0 then
			Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_RELEASE)
			mat=mg:SelectWithSumGreater(tp,Card.GetRitualLevel,tc:GetLevel(),tc)
		else
			Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_RELEASE)
			mat=mg:FilterSelect(tp,c16494704.mfilterf,1,1,nil,tp,mg,tc)
			Duel.SetSelectedCard(mat)
			Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_RELEASE)
			local mat2=mg:SelectWithSumGreater(tp,Card.GetRitualLevel,tc:GetLevel(),tc)
			mat:Merge(mat2)
		end
		tc:SetMaterial(mat)
		local mat2=mat:Filter(Card.IsLocation,nil,LOCATION_EXTRA)
		mat:Sub(mat2)
		Duel.ReleaseRitualMaterial(mat)
		Duel.SendtoGrave(mat2,REASON_EFFECT+REASON_MATERIAL+REASON_RITUAL)
		Duel.BreakEffect()
		Duel.SpecialSummon(tc,SUMMON_TYPE_RITUAL,tp,tp,false,true,POS_FACEUP)
		tc:CompleteProcedure()
	end
end
