--created & coded by Lyris, art by digitalart69 of DeviantArt
--機氷竜アルトリ
local s,id,o=GetID()
function s.initial_effect(c)
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_QUICK_O)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetRange(LOCATION_HAND)
	e1:SetCountLimit(1,id)
	e1:SetCategory(CATEGORY_SEARCH+CATEGORY_TOHAND)
	e1:SetCost(s.cost)
	e1:SetTarget(s.tg)
	e1:SetOperation(s.op)
	c:RegisterEffect(e1)
	if not s.global_check then
		s.global_check=true
		s[0]={}
		s[1]={}
		local race=1
		while race<RACE_ALL do
			s[0][race]=0
			s[1][race]=0
			race=race<<1
		end
		local ge1=Effect.CreateEffect(c)
		ge1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
		ge1:SetCode(EVENT_SPSUMMON_SUCCESS)
		ge1:SetOperation(s.rchk)
		Duel.RegisterEffect(ge1,0)
	end
end
function s.cfilter(c,tp,rc)
	return c:IsSummonPlayer(tp) and c:IsRace(rc)
end
function s.rchk(e,tp,eg)
	for p=0,1 do if Duel.GetFlagEffect(p,id)>0 then
		local rc=1
		while rc<RACE_ALL do
			if eg:IsExists(s.cfilter,1,nil,p,rc) then s[p][rc]=s[p][rc]+1 end
			rc=rc<<1
		end
	end end
end
function s.lim(e,c,sump,sumtype,sumpos,targetp)
	if sumpos and bit.band(sumpos,POS_FACEDOWN)>0 then return false end
	local tp=sump
	if targetp then tp=targetp end
	return s[tp][c:GetRace()] and s[tp][c:GetRace()]>1
end
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return c:IsDiscardable() end
	Duel.SendtoGrave(c,REASON_DISCARD+REASON_COST)
end
function s.filter(c)
	return c:IsType(TYPE_MONSTER) and c:IsSetCard(0xd76) and c:IsAbleToHand()
end
function s.tg(e,tp,eg,ep,ev,re,r,rp,chk)
	local loc=LOCATION_GRAVE
	if Duel.GetTurnPlayer()~=tp then loc=LOCATION_DECK end
	if chk==0 then return Duel.IsExistingMatchingCard(s.filter,tp,loc,0,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,tp,loc)
end
function s.op(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if Duel.GetFlagEffect(tp,id)==0 then
		local rc=1
		while rc<RACE_ALL do s[tp][rc]=0 rc=rc<<1 end
		Duel.RegisterFlagEffect(tp,id,RESET_PHASE+PHASE_END,0,2)
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_FIELD)
		e1:SetCode(EFFECT_LIMIT_SPECIAL_SUMMON_POSITION)
		e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
		e1:SetTargetRange(1,0)
		e1:SetTarget(s.lim)
		e1:SetReset(RESET_PHASE+PHASE_END+RESET_SELF_TURN)
		Duel.RegisterEffect(e1,tp)
	end
	local loc=LOCATION_GRAVE
	if Duel.GetTurnPlayer()~=tp then loc=LOCATION_DECK end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local tc=Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(s.filter),tp,loc,0,1,1,nil):GetFirst()
	if tc and Duel.SendtoHand(tc,nil,REASON_EFFECT)>0 and tc:IsLocation(LOCATION_HAND) and tc:IsPreviousLocation(LOCATION_DECK) then
		Duel.ConfirmCards(1-tp,tc)
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
		e1:SetCode(EVENT_PHASE+PHASE_END)
		e1:SetCountLimit(1)
		e1:SetLabel(tc:GetCode())
		e1:SetOperation(s.epop)
		e1:SetReset(RESET_PHASE+PHASE_END)
		Duel.RegisterEffect(e1,tp)
	end
end
function s.cfilter(c)
	return c:GetAttackedCount()==0
end
function s.epop(e,tp,eg,ep,ev,re,r,rp)
	local p=e:GetOwnerPlayer()
	if Duel.IsExistingMatchingCard(s.cfilter,p,0,LOCATION_MZONE,1,nil) then return end
	Duel.SendtoGrave(Duel.GetMatchingGroup(Card.IsCode,p,LOCATION_HAND,0,nil,e:GetLabel()),REASON_EFFECT+REASON_DISCARD)
end