Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If you activate a Set "Welcome Labrynth" Normal Trap, you can add this additional effect to that card's effect at resolution. ● Also after that, destroy 1 card on the field. If you activate a non-"Labrynth" Normal Trap Card (except during the Damage Step): You can Special Summon 1 Fiend monster from your hand or GY. You can only use each effect of "Labrynth Labyrinth" once per turn.
--白銀の迷宮城
--Labrynth Labyrinth
--Scripted by Hatter
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	c:RegisterEffect(e1)
	--Special Summon 1 Fiend monster from hand or GY
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e2:SetProperty(EFFECT_FLAG_DELAY)
	e2:SetCode(EVENT_CHAINING)
	e2:SetRange(LOCATION_FZONE)
	e2:SetCountLimit(1,id)
	e2:SetCondition(s.spcon)
	e2:SetTarget(s.sptg)
	e2:SetOperation(s.spop)
	c:RegisterEffect(e2)
	--Add effect to "Welcome Labrynth"
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_FIELD)
	e3:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e3:SetCode(CARD_LABRYNTH_LABYRINTH)
	e3:SetRange(LOCATION_FZONE)
	e3:SetCountLimit(1,{id,1})
	e3:SetTargetRange(1,0)
	c:RegisterEffect(e3)
end
s.listed_series={SET_LABRYNTH,SET_WELCOME_LABRYNTH}
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	local c=re:GetHandler()
	return rp==tp and re:IsHasType(EFFECT_TYPE_ACTIVATE) and re:GetActiveType()==TYPE_TRAP and not c:IsSetCard(SET_LABRYNTH)
end
function s.spfilter(c,e,tp)
	return c:IsRace(RACE_FIEND) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingMatchingCard(s.spfilter,tp,LOCATION_HAND|LOCATION_GRAVE,0,1,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_HAND|LOCATION_GRAVE)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<1 then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(s.spfilter),tp,LOCATION_HAND|LOCATION_GRAVE,0,1,1,nil,e,tp)
	if #g>0 then
		Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP)
	end
end