Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If this card is Normal or Special Summoned: You can activate 1 of these effects; ● Add 1 "Magistus" Spell/Trap from your Deck to your hand. ● Return 1 of your banished Level 4 or lower Spellcaster monsters to your GY. You can banish this card from your GY, then target 1 "Magistus" monster you control; equip it with 1 "Magistus" monster from your GY, except a Level 4 monster. You can only use each effect of "Rilliona, the Magistus of Verre" once per turn.
--結晶の大賢者サンドリヨン
--Rilliona, the Magistus of Verre
--Scripted by Naim
local s,id=GetID()
function s.initial_effect(c)
	--Activate 1 of these effects
	local e1a=Effect.CreateEffect(c)
	e1a:SetDescription(aux.Stringid(id,0))
	e1a:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1a:SetProperty(EFFECT_FLAG_DELAY)
	e1a:SetCode(EVENT_SUMMON_SUCCESS)
	e1a:SetCountLimit(1,id)
	e1a:SetTarget(s.efftg)
	e1a:SetOperation(s.effop)
	c:RegisterEffect(e1a)
	local e1b=e1a:Clone()
	e1b:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e1b)
	--Equip 1 "Magistus" monster you control with 1 "Magistus" monster from your GY, except a Level 4 monster
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_EQUIP)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetCountLimit(1,{id,1})
	e2:SetCost(Cost.SelfBanish)
	e2:SetTarget(s.eqtg)
	e2:SetOperation(s.eqop)
	c:RegisterEffect(e2)
end
s.listed_series={SET_MAGISTUS}
function s.thfilter(c)
	return c:IsSetCard(SET_MAGISTUS) and c:IsSpellTrap() and c:IsAbleToHand()
end
function s.rtgfilter(c)
	return c:IsLevelBelow(4) and c:IsRace(RACE_SPELLCASTER) and c:IsFaceup()
end
function s.efftg(e,tp,eg,ep,ev,re,r,rp,chk)
	local b1=Duel.IsExistingMatchingCard(s.thfilter,tp,LOCATION_DECK,0,1,nil)
	local b2=Duel.IsExistingMatchingCard(s.rtgfilter,tp,LOCATION_REMOVED,0,1,nil)
	if chk==0 then return b1 or b2 end
	local op=Duel.SelectEffect(tp,
		{b1,aux.Stringid(id,2)},
		{b2,aux.Stringid(id,3)})
	e:SetLabel(op)
	if op==1 then
		e:SetCategory(CATEGORY_TOHAND+CATEGORY_SEARCH)
		Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,tp,LOCATION_DECK)
	elseif op==2 then
		e:SetCategory(0)
	end
end
function s.effop(e,tp,eg,ep,ev,re,r,rp)
	local op=e:GetLabel()
	if op==1 then
		--Add 1 "Magistus" Spell/Trap from your Deck to your hand
		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
	elseif op==2 then
		--Return 1 of your banished Level 4 or lower Spellcaster monsters to your GY
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_RTOGRAVE)
		local g=Duel.SelectMatchingCard(tp,s.rtgfilter,tp,LOCATION_REMOVED,0,1,1,nil)
		if #g>0 then
			Duel.HintSelection(g)
			Duel.SendtoGrave(g,REASON_EFFECT|REASON_RETURN)
		end
	end
end
function s.eqfilter(c)
	return c:IsSetCard(SET_MAGISTUS) and not c:IsLevel(4) and c:IsMonster()
end
function s.eqtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsControler(tp) and chkc:IsSetCard(SET_MAGISTUS) and chkc:IsFaceup() end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_SZONE)>0
		and Duel.IsExistingTarget(aux.FaceupFilter(Card.IsSetCard,SET_MAGISTUS),tp,LOCATION_MZONE,0,1,nil)
		and Duel.IsExistingMatchingCard(s.eqfilter,tp,LOCATION_GRAVE,0,1,e:GetHandler()) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TARGET)
	Duel.SelectTarget(tp,aux.FaceupFilter(Card.IsSetCard,SET_MAGISTUS),tp,LOCATION_MZONE,0,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_EQUIP,nil,1,tp,LOCATION_GRAVE)
end
function s.eqop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) and tc:IsFaceup() and Duel.GetLocationCount(tp,LOCATION_SZONE)>0 then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_EQUIP)
		local ec=Duel.SelectMatchingCard(tp,s.eqfilter,tp,LOCATION_GRAVE,0,1,1,nil):GetFirst()
		if ec and Duel.Equip(tp,ec,tc) then
			--Equip limit
			local e1=Effect.CreateEffect(e:GetHandler())
			e1:SetType(EFFECT_TYPE_SINGLE)
			e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
			e1:SetCode(EFFECT_EQUIP_LIMIT)
			e1:SetValue(function(e,c) return c==tc end)
			e1:SetReset(RESET_EVENT|RESETS_STANDARD)
			ec:RegisterEffect(e1)
		end
	end
end