Rex,
If this card is Normal or Special Summoned: You can add 1 Spell/Trap "Fur Hire" from your Deck to your hand. During the Main Phase, if you control a monster "Fur Hire" (Quick Effect): You can banish this card from your GY, then target 1 card "Fur Hire" in your GY; either add it to your hand, or Special Summon it if it was a monster. You can only use each effect of "Rex, Freight Fur Hire" once per turn.
local SETCARD_ID_0 = 0x114 --Fur

local SETCARD_ID_0 = 0x114 --Fur
local s, id, o = GetID()
function s.initial_effect(c)
	--search
	local e1 = Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id, 0))
	e1:SetCategory(CATEGORY_TOHAND + CATEGORY_SEARCH)
	e1:SetType(EFFECT_TYPE_TRIGGER_O + EFFECT_TYPE_SINGLE)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetProperty(EFFECT_FLAG_DELAY)
	e1:SetCountLimit(1, id)
	e1:SetTarget(s.thtg)
	e1:SetOperation(s.thop)
	c:RegisterEffect(e1)
	local e2 = e1:Clone()
	e2:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e2)
	--to hand or special summon
	local e3 = Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id, 1))
	e3:SetType(EFFECT_TYPE_QUICK_O)
	e3:SetCode(EVENT_FREE_CHAIN)
	e3:SetRange(LOCATION_GRAVE)
	e3:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e3:SetHintTiming(0, TIMING_MAIN_END)
	e3:SetCountLimit(1, id + o)
	e3:SetCondition(s.spcon)
	e3:SetCost(aux.bfgcost)
	e3:SetTarget(s.sptg)
	e3:SetOperation(s.spop)
	c:RegisterEffect(e3)
end
function s.thfilter(c)
	return c:IsSetCard(SETCARD_ID_0) and c:IsType(TYPE_SPELL + TYPE_TRAP) 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:GetCount() > 0 then
		Duel.SendtoHand(g, nil, REASON_EFFECT)
		Duel.ConfirmCards(1 - tp, g)
	end
end
function s.cfilter(c)
	return c:IsFaceup() and c:IsSetCard(SETCARD_ID_0)
end
function s.spcon(e, tp, eg, ep, ev, re, r, rp)
	local ph = Duel.GetCurrentPhase()
	return (ph == PHASE_MAIN1 or ph == PHASE_MAIN2) and Duel.IsExistingMatchingCard(s.cfilter, tp, LOCATION_MZONE, 0, 1, nil)
end
function s.spfilter(c, e, tp)
	if not c:IsSetCard(SETCARD_ID_0) then
		return false
	end
	local sp = Duel.GetLocationCount(tp, LOCATION_MZONE) > 0
	if c:IsType(TYPE_MONSTER) then
		return c:IsAbleToHand() or sp and c:IsCanBeSpecialSummoned(e, 0, tp, false, false)
	else
		return c:IsAbleToHand()
	end
end
function s.sptg(e, tp, eg, ep, ev, re, r, rp, chk, chkc)
	if chkc then
		return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.spfilter(chkc, e, tp)
	end
	if chk == 0 then
		return Duel.IsExistingTarget(s.spfilter, tp, LOCATION_GRAVE, 0, 1, e:GetHandler(), e, tp)
	end
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_ATOHAND)
	local g = Duel.SelectTarget(tp, s.spfilter, tp, LOCATION_GRAVE, 0, 1, 1, nil, e, tp)
	if g:GetFirst():IsType(TYPE_MONSTER) then
		e:SetCategory(CATEGORY_SPECIAL_SUMMON + CATEGORY_TOHAND + CATEGORY_GRAVE_ACTION + CATEGORY_GRAVE_SPSUMMON)
	else
		e:SetCategory(CATEGORY_TOHAND)
		Duel.SetOperationInfo(0, CATEGORY_TOHAND, g, 1, 0, 0)
	end
end
function s.spop(e, tp, eg, ep, ev, re, r, rp)
	local tc = Duel.GetFirstTarget()
	if not tc:IsRelateToEffect(e) then
		return
	end
	if
		tc:IsType(TYPE_MONSTER)
		and Duel.GetLocationCount(tp, LOCATION_MZONE) > 0
		and tc:IsCanBeSpecialSummoned(e, 0, tp, false, false)
		and (not tc:IsAbleToHand() or Duel.SelectOption(tp, 1190, 1152) == 1)
	then
		Duel.SpecialSummon(tc, 0, tp, tp, false, false, POS_FACEUP)
	else
		Duel.SendtoHand(tc, nil, REASON_EFFECT)
	end
end


Rex,
If this card is Normal or Special Summoned: You can add 1 Spell/Trap "Fur Hire" from your Deck to your hand. During the Main Phase, if you control a monster "Fur Hire" (Quick Effect): You can banish this card from your GY, then target 1 card "Fur Hire" in your GY; either add it to your hand, or Special Summon it if it was a monster. You can only use each effect of "Rex, Freight Fur Hire" once per turn.
-- Rex,
local SETCARD_ID_0 = 0x114 --Fur
local s, id, o = GetID()
function s.initial_effect(c)
	--search
	local e1 = Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id, 0))
	e1:SetCategory(CATEGORY_TOHAND + CATEGORY_SEARCH)
	e1:SetType(EFFECT_TYPE_TRIGGER_O + EFFECT_TYPE_SINGLE)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetProperty(EFFECT_FLAG_DELAY)
	e1:SetCountLimit(1, id)
	e1:SetTarget(s.thtg)
	e1:SetOperation(s.thop)
	c:RegisterEffect(e1)
	local e2 = e1:Clone()
	e2:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e2)
	--to hand or special summon
	local e3 = Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id, 1))
	e3:SetType(EFFECT_TYPE_QUICK_O)
	e3:SetCode(EVENT_FREE_CHAIN)
	e3:SetRange(LOCATION_GRAVE)
	e3:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e3:SetHintTiming(0, TIMING_MAIN_END)
	e3:SetCountLimit(1, id + o)
	e3:SetCondition(s.spcon)
	e3:SetCost(aux.bfgcost)
	e3:SetTarget(s.sptg)
	e3:SetOperation(s.spop)
	c:RegisterEffect(e3)
end
function s.thfilter(c)
	return c:IsSetCard(SETCARD_ID_0) and c:IsType(TYPE_SPELL + TYPE_TRAP) 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:GetCount() > 0 then
		Duel.SendtoHand(g, nil, REASON_EFFECT)
		Duel.ConfirmCards(1 - tp, g)
	end
end
function s.cfilter(c)
	return c:IsFaceup() and c:IsSetCard(SETCARD_ID_0)
end
function s.spcon(e, tp, eg, ep, ev, re, r, rp)
	local ph = Duel.GetCurrentPhase()
	return (ph == PHASE_MAIN1 or ph == PHASE_MAIN2) and Duel.IsExistingMatchingCard(s.cfilter, tp, LOCATION_MZONE, 0, 1, nil)
end
function s.spfilter(c, e, tp)
	if not c:IsSetCard(SETCARD_ID_0) then
		return false
	end
	local sp = Duel.GetLocationCount(tp, LOCATION_MZONE) > 0
	if c:IsType(TYPE_MONSTER) then
		return c:IsAbleToHand() or sp and c:IsCanBeSpecialSummoned(e, 0, tp, false, false)
	else
		return c:IsAbleToHand()
	end
end
function s.sptg(e, tp, eg, ep, ev, re, r, rp, chk, chkc)
	if chkc then
		return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.spfilter(chkc, e, tp)
	end
	if chk == 0 then
		return Duel.IsExistingTarget(s.spfilter, tp, LOCATION_GRAVE, 0, 1, e:GetHandler(), e, tp)
	end
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_ATOHAND)
	local g = Duel.SelectTarget(tp, s.spfilter, tp, LOCATION_GRAVE, 0, 1, 1, nil, e, tp)
	if g:GetFirst():IsType(TYPE_MONSTER) then
		e:SetCategory(CATEGORY_SPECIAL_SUMMON + CATEGORY_TOHAND + CATEGORY_GRAVE_ACTION + CATEGORY_GRAVE_SPSUMMON)
	else
		e:SetCategory(CATEGORY_TOHAND)
		Duel.SetOperationInfo(0, CATEGORY_TOHAND, g, 1, 0, 0)
	end
end
function s.spop(e, tp, eg, ep, ev, re, r, rp)
	local tc = Duel.GetFirstTarget()
	if not tc:IsRelateToEffect(e) then
		return
	end
	if
		tc:IsType(TYPE_MONSTER)
		and Duel.GetLocationCount(tp, LOCATION_MZONE) > 0
		and tc:IsCanBeSpecialSummoned(e, 0, tp, false, false)
		and (not tc:IsAbleToHand() or Duel.SelectOption(tp, 1190, 1152) == 1)
	then
		Duel.SpecialSummon(tc, 0, tp, tp, false, false, POS_FACEUP)
	else
		Duel.SendtoHand(tc, nil, REASON_EFFECT)
	end
end

