Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Cannot be Synchro Summoned. Must be Special Summoned (from your Extra Deck) by sending 2 monsters you control with a Level difference of 7 to the GY (1 Level 8 or higher Tuner and 1 non-Tuner Synchro Monster). Negate the effects of face-up monsters without a Level that were Special Summoned from the Extra Deck. If your opponent Special Summons a monster(s) (except during the Damage Step): You can add 1 "Ursarctic" card from your Deck to your hand. You can only use this effect of "Ursarctic Septentrion" once per turn.
--ベアルクティ－セプテン＝トリオン
--Ursarctic Septentrion
local s,id=GetID()
function s.initial_effect(c)
	--Must be properly summoned before reviving
	c:EnableReviveLimit()
	--Must be special summoned by its own method
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_UNCOPYABLE)
	e1:SetCode(EFFECT_SPSUMMON_CONDITION)
	c:RegisterEffect(e1)
	--Special summon procedure (from extra deck)
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD)
	e2:SetCode(EFFECT_SPSUMMON_PROC)
	e2:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_UNCOPYABLE)
	e2:SetRange(LOCATION_EXTRA)
	e2:SetCondition(s.sprcon)
	e2:SetTarget(s.sprtg)
	e2:SetOperation(s.sprop)
	c:RegisterEffect(e2)
	--disable
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_FIELD)
	e3:SetCode(EFFECT_DISABLE)
	e3:SetRange(LOCATION_MZONE)
	e3:SetTargetRange(LOCATION_MZONE,LOCATION_MZONE)
	e3:SetTarget(s.distg)
	c:RegisterEffect(e3)
	--search
	local e4=Effect.CreateEffect(c)
	e4:SetDescription(aux.Stringid(id,1))
	e4:SetCategory(CATEGORY_TOHAND+CATEGORY_SEARCH)
	e4:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e4:SetProperty(EFFECT_FLAG_DELAY)
	e4:SetCode(EVENT_SPSUMMON_SUCCESS)
	e4:SetCountLimit(1,id)
	e4:SetRange(LOCATION_MZONE)
	e4:SetCondition(s.thcon)
	e4:SetTarget(s.thtg)
	e4:SetOperation(s.thop)
	c:RegisterEffect(e4)
end
s.listed_series={SET_URSARCTIC}
function s.sprfilter(c)
	return c:IsFaceup() and c:IsAbleToGraveAsCost() and c:HasLevel()
end
function s.sprfilter1(c,tp,g,sc)
	local lv=c:GetLevel()
	local g=Duel.GetMatchingGroup(s.sprfilter,tp,LOCATION_MZONE,0,nil)
	return c:IsType(TYPE_TUNER) and c:IsLevelAbove(8) and g:IsExists(s.sprfilter2,1,c,tp,c,sc)
end
function s.sprfilter2(c,tp,mc,sc)
	local sg=Group.FromCards(c,mc)
	return (math.abs((c:GetLevel()-mc:GetLevel()))==7) and c:IsType(TYPE_SYNCHRO) and not c:IsType(TYPE_TUNER) and Duel.GetLocationCountFromEx(tp,tp,sg,sc)>0
end
function s.sprcon(e,c)
	if c==nil then return true end
	local tp=c:GetControler()
	local g=Duel.GetMatchingGroup(s.sprfilter,tp,LOCATION_MZONE,0,nil)
	return g:IsExists(s.sprfilter1,1,nil,tp,g,c)
end
function s.sprtg(e,tp,eg,ep,ev,re,r,rp,c)
	local c=e:GetHandler()
	local g=Duel.GetMatchingGroup(s.sprfilter,tp,LOCATION_MZONE,0,nil)
	local g1=g:Filter(s.sprfilter1,nil,tp,g,c)
	local mg1=aux.SelectUnselectGroup(g1,e,tp,1,1,nil,1,tp,HINTMSG_TOGRAVE,nil,nil,true)
	if #mg1>0 then
		local mc=mg1:GetFirst()
		local g2=g:Filter(s.sprfilter2,mc,tp,mc,c,mc:GetLevel())
		local mg2=aux.SelectUnselectGroup(g2,e,tp,1,1,nil,1,tp,HINTMSG_TOGRAVE,nil,nil,true)
		mg1:Merge(mg2)
	end
	if #mg1==2 then
		mg1:KeepAlive()
		e:SetLabelObject(mg1)
		return true
	end
	return false
end
function s.sprop(e,tp,eg,ep,ev,re,r,rp,c)
	local g=e:GetLabelObject()
	if not g then return end
	Duel.SendtoGrave(g,REASON_COST)
end
function s.distg(e,c)
	return c:IsSummonLocation(LOCATION_EXTRA) and not c:HasLevel()
end
--to hand
function s.thcon(e,tp,eg,ep,ev,re,r,rp)
	return eg:IsExists(Card.IsSummonPlayer,1,nil,1-tp)
end
function s.thfilter(c)
	return c:IsSetCard(SET_URSARCTIC) and c:IsAbleToHand()
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.thfilter,tp,LOCATION_DECK,0,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,tp,LOCATION_DECK)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectMatchingCard(tp,s.thfilter,tp,LOCATION_DECK,0,1,1,nil)
	if #g>0 then
		Duel.SendtoHand(g,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,g)
	end
end