--ティアラメンツ・メイルゥ
function c74078255.initial_effect(c)
	--deckdes
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(74078255,0))
	e1:SetCategory(CATEGORY_DECKDES)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetProperty(EFFECT_FLAG_DELAY)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetCountLimit(1,74078255)
	e1:SetTarget(c74078255.ddtg)
	e1:SetOperation(c74078255.ddop)
	c:RegisterEffect(e1)
	local e2=e1:Clone()
	e2:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e2)
	--special summon
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(74078255,1))
	e3:SetCategory(CATEGORY_SPECIAL_SUMMON+CATEGORY_FUSION_SUMMON+CATEGORY_GRAVE_ACTION)
	e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e3:SetCode(EVENT_TO_GRAVE)
	e3:SetCountLimit(1,74078256)
	e3:SetProperty(EFFECT_FLAG_DELAY)
	e3:SetCondition(c74078255.condition)
	e3:SetTarget(c74078255.target)
	e3:SetOperation(c74078255.activate)
	c:RegisterEffect(e3)
end
function c74078255.ddtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsPlayerCanDiscardDeck(tp,3) end
	Duel.SetOperationInfo(0,CATEGORY_DECKDES,nil,0,tp,3)
end
function c74078255.ddop(e,tp,eg,ep,ev,re,r,rp)
	Duel.DiscardDeck(tp,3,REASON_EFFECT)
end
function c74078255.filter0(c,e)
	return c:IsType(TYPE_MONSTER) and c:IsCanBeFusionMaterial() and c:IsAbleToDeck() and not c:IsImmuneToEffect(e)
end
function c74078255.filter1(c,e,tp,m,f,chkf)
	if not (c:IsType(TYPE_FUSION) and (not f or f(c))
		and c:IsCanBeSpecialSummoned(e,SUMMON_TYPE_FUSION,tp,false,false)) then return false end
	local res=c:CheckFusionMaterial(m,e:GetHandler(),chkf)
	return res
end
function c74078255.condition(e,tp,eg,ep,ev,re,r,rp)
	local ph=Duel.GetCurrentPhase()
	return ph~=PHASE_DAMAGE and ph~=PHASE_DAMAGE_CAL and e:GetHandler():IsReason(REASON_EFFECT)
end
function c74078255.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then
		local chkf=tp
		local mg=Duel.GetMatchingGroup(c74078255.filter0,tp,LOCATION_HAND+LOCATION_MZONE+LOCATION_GRAVE,0,nil,e)
		local res=Duel.IsExistingMatchingCard(c74078255.filter1,tp,LOCATION_EXTRA,0,1,nil,e,tp,mg,nil,chkf)
		if not res then
			local ce=Duel.GetChainMaterial(tp)
			if ce~=nil then
				local fgroup=ce:GetTarget()
				local mg2=fgroup(ce,e,tp)
				local mf=ce:GetValue()
				res=Duel.IsExistingMatchingCard(c74078255.filter1,tp,LOCATION_EXTRA,0,1,nil,e,tp,mg2,mf,chkf)
			end
		end
		return res
	end
	e:GetHandler():RegisterFlagEffect(99456344,RESET_EVENT+RESETS_STANDARD+RESET_CHAIN,0,1)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_EXTRA)
end
function c74078255.activate(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local chkf=tp
	if not c:IsRelateToEffect(e) or c:GetFlagEffect(99456344)==0 or c:IsImmuneToEffect(e) then return end
	local mg=Duel.GetMatchingGroup(aux.NecroValleyFilter(c74078255.filter0),tp,LOCATION_HAND+LOCATION_MZONE+LOCATION_GRAVE,0,nil,e)
	local sg1=Duel.GetMatchingGroup(c74078255.filter1,tp,LOCATION_EXTRA,0,nil,e,tp,mg,nil,chkf)
	local mg2=nil
	local sg2=nil
	local ce=Duel.GetChainMaterial(tp)
	if ce~=nil then
		local fgroup=ce:GetTarget()
		mg2=fgroup(ce,e,tp)
		local mf=ce:GetValue()
		sg2=Duel.GetMatchingGroup(c74078255.filter1,tp,LOCATION_EXTRA,0,nil,e,tp,mg2,mf,chkf)
	end
	if sg1:GetCount()>0 or (sg2~=nil and sg2:GetCount()>0) then
		local sg=sg1:Clone()
		if sg2 then sg:Merge(sg2) end
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
		local tg=sg:Select(tp,1,1,nil)
		local tc=tg:GetFirst()
		if sg1:IsContains(tc) and (sg2==nil or not sg2:IsContains(tc) or not Duel.SelectYesNo(tp,ce:GetDescription())) then
			local mat1=Duel.SelectFusionMaterial(tp,tc,mg,e:GetHandler(),chkf)
			tc:SetMaterial(mat1)
			if mat1:IsExists(c74078255.fdfilter,1,nil) then
				local cg=mat1:Filter(c74078255.fdfilter,nil)
				Duel.ConfirmCards(1-tp,cg)
			end
			Duel.SendtoDeck(mat1,nil,SEQ_DECKTOP,REASON_EFFECT+REASON_MATERIAL+REASON_FUSION)
			local p=tp
			for i=1,2 do
				local dg=mat1:Filter(c74078255.seqfilter,nil,p)
				if #dg>1 then
					Duel.SortDecktop(tp,p,#dg)
				end
				for i=1,#dg do
					local mg=Duel.GetDecktopGroup(p,1)
					Duel.MoveSequence(mg:GetFirst(),SEQ_DECKBOTTOM)
				end
				p=1-tp
			end
			Duel.BreakEffect()
			Duel.SpecialSummon(tc,SUMMON_TYPE_FUSION,tp,tp,false,false,POS_FACEUP)
		else
			local mat2=Duel.SelectFusionMaterial(tp,tc,mg2,e:GetHandler(),chkf)
			local fop=ce:GetOperation()
			fop(ce,e,tp,tc,mat2)
		end
		tc:CompleteProcedure()
	end
end
function c74078255.fdfilter(c)
	return c:IsLocation(LOCATION_MZONE) and c:IsFacedown() or c:IsLocation(LOCATION_HAND)
end
function c74078255.seqfilter(c,tp)
	return c:IsLocation(LOCATION_DECK) and c:IsControler(tp)
end
