Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
2 monsters, including a Level 4 Spellcaster monster If this card is Link Summoned: You can target 1 "Magistus" monster you control; equip 1 Spellcaster monster from your GY or banishment to it. During the Main Phase (Quick Effect): You can target 1 Spellcaster Monster Card in your Spell & Trap Zone treated as an Equip Spell; return it to the hand. You can only use 1 "Endymion, the Crescent of Magistus" effect per turn, and only once that turn.
--聖月の魔導士エンディミオン
--Endymion, the Crescent of Magistus
--scripted by Naim
local s,id=GetID()
function s.initial_effect(c)
	c:EnableReviveLimit()
	--Link Summon procedure: 2 monsters, including a Level 4 Spellcaster monster
	Link.AddProcedure(c,nil,2,2,s.matcheck)
	--Equip 1 Spellcaster monster from your GY or banishment to 1 "Magistus" monster you control
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_EQUIP)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetProperty(EFFECT_FLAG_DELAY+EFFECT_FLAG_CARD_TARGET)
	e1:SetCode(EVENT_SPSUMMON_SUCCESS)
	e1:SetCountLimit(1,id)
	e1:SetCondition(function(e) return e:GetHandler():IsLinkSummoned() end)
	e1:SetTarget(s.eqtg)
	e1:SetOperation(s.eqop)
	c:RegisterEffect(e1)
	--Return 1 Spellcaster Monster Card in your Spell & Trap Zone treated as an Equip Spell to the hand 
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_TOHAND)
	e2:SetType(EFFECT_TYPE_QUICK_O)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetCode(EVENT_FREE_CHAIN)
	e2:SetRange(LOCATION_MZONE)
	e2:SetHintTiming(0,TIMING_MAIN_END|TIMINGS_CHECK_MONSTER)
	e2:SetCountLimit(1,id)
	e2:SetCondition(function() return Duel.IsMainPhase() end)
	e2:SetTarget(s.thtg)
	e2:SetOperation(s.thop)
	c:RegisterEffect(e2)
end
s.listes_series={SET_MAGISTUS}
function s.matfilter(c,lc,sumtype,tp)
	return c:IsLevel(4) and c:IsRace(RACE_SPELLCASTER,lc,sumtype,tp)
end
function s.matcheck(g,lc,sumtype,tp)
	return g:IsExists(s.matfilter,1,nil,lc,sumtype,tp)
end
function s.eqfilter(c,tp)
	return c:IsRace(RACE_SPELLCASTER) and c:CheckUniqueOnField(tp) and c:IsFaceup() and not c:IsForbidden() 
end
function s.eqtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	local c=e:GetHandler()
	if chkc then return chkc:IsControler(tp) and chkc:IsLocation(LOCATION_MZONE) and chkc:IsFaceup() and chkc:IsSetCard(SET_MAGISTUS) 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|LOCATION_REMOVED,0,1,nil,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_EQUIP)
	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|LOCATION_REMOVED)
end
function s.eqop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if not (tc:IsFaceup() and tc:IsRelateToEffect(e) and Duel.GetLocationCount(tp,LOCATION_SZONE)>0) then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_EQUIP)
	local ec=Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(s.eqfilter),tp,LOCATION_GRAVE|LOCATION_REMOVED,0,1,1,nil,tp):GetFirst()
	if ec and Duel.Equip(tp,ec,tc) then
		--Equip limit
		local e1=Effect.CreateEffect(ec)
		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
function s.thfilter(c)
	return c:IsRace(RACE_SPELLCASTER) and c:IsMonsterCard() and c:IsEquipSpell() and c:IsFaceup() and c:IsAbleToHand()
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_STZONE) and chkc:IsControler(tp) and s.thfilter(chck) end
	if chk==0 then return Duel.IsExistingTarget(s.thfilter,tp,LOCATION_STZONE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_RTOHAND)
	local g=Duel.SelectTarget(tp,s.thfilter,tp,LOCATION_STZONE,0,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,g,1,tp,0)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.SendtoHand(tc,nil,REASON_EFFECT)
	end
end