Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by banishing 3 "SPYRAL" cards from your Graveyard, and cannot be Special Summoned by other ways. Once per turn, during either player's turn: You can target 1 "SPYRAL" card you control and up to 2 cards your opponent controls; destroy them. If this card on the field is destroyed by battle or card effect and sent to the Graveyard: Destroy as many cards you control as possible, and if you do, Special Summon 1 "SPYRAL Super Agent" from your hand, Deck, or Graveyard.
--ＳＰＹＲＡＬ－ボルテックス
--SPYRAL Sleeper
local s,id=GetID()
function s.initial_effect(c)
	c:EnableReviveLimit()
	--Special summon limit
	local e0=Effect.CreateEffect(c)
	e0:SetType(EFFECT_TYPE_SINGLE)
	e0:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_UNCOPYABLE)
	e0:SetCode(EFFECT_SPSUMMON_CONDITION)
	e0:SetValue(aux.FALSE)
	c:RegisterEffect(e0)
	--Special summon procedure
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_UNCOPYABLE)
	e1:SetCode(EFFECT_SPSUMMON_PROC)
	e1:SetRange(LOCATION_HAND)
	e1:SetCondition(s.sprcon)
	e1:SetTarget(s.sprtg)
	e1:SetOperation(s.sprop)
	c:RegisterEffect(e1)
	--Destroy cards
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetCategory(CATEGORY_DESTROY)
	e2:SetType(EFFECT_TYPE_QUICK_O)
	e2:SetCode(EVENT_FREE_CHAIN)
	e2:SetCountLimit(1)
	e2:SetRange(LOCATION_MZONE)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetHintTiming(0,TIMINGS_CHECK_MONSTER_E)
	e2:SetTarget(s.destg)
	e2:SetOperation(s.desop)
	c:RegisterEffect(e2)
	--Destroy and summon
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,1))
	e3:SetCategory(CATEGORY_DESTROY+CATEGORY_SPECIAL_SUMMON)
	e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_F)
	e3:SetCode(EVENT_TO_GRAVE)
	e3:SetCondition(s.spcon)
	e3:SetTarget(s.sptg)
	e3:SetOperation(s.spop)
	c:RegisterEffect(e3)
end
s.listed_series={SET_SPYRAL}
s.listed_names={41091257}
function s.sprfilter(c,tp)
	return c:IsSetCard(SET_SPYRAL) and c:IsAbleToRemoveAsCost() and aux.SpElimFilter(c,true)
end
function s.sprcon(e,c)
	if c==nil then return true end
	local tp=e:GetHandlerPlayer()
	local rg=Duel.GetMatchingGroup(s.sprfilter,tp,LOCATION_MZONE|LOCATION_GRAVE,0,nil)
	return Duel.GetLocationCount(tp,LOCATION_MZONE)>-2 and #rg>=3 and aux.SelectUnselectGroup(rg,e,tp,3,3,aux.ChkfMMZ(1),0)
end
function s.sprtg(e,tp,eg,ep,ev,re,r,rp,c)
	local rg=Duel.GetMatchingGroup(s.sprfilter,tp,LOCATION_MZONE|LOCATION_GRAVE,0,nil)
	local g=aux.SelectUnselectGroup(rg,e,tp,3,3,aux.ChkfMMZ(1),1,tp,HINTMSG_REMOVE,nil,nil,true)
	if #g>0 then
		g:KeepAlive()
		e:SetLabelObject(g)
		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.Remove(g,POS_FACEUP,REASON_COST)
	g:DeleteGroup()
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return false end
	if chk==0 then return Duel.IsExistingTarget(aux.FaceupFilter(Card.IsSetCard,SET_SPYRAL),tp,LOCATION_ONFIELD,0,1,nil)
		and Duel.IsExistingTarget(nil,tp,0,LOCATION_ONFIELD,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local g1=Duel.SelectTarget(tp,aux.FaceupFilter(Card.IsSetCard,SET_SPYRAL),tp,LOCATION_ONFIELD,0,1,1,nil)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local g2=Duel.SelectTarget(tp,nil,tp,0,LOCATION_ONFIELD,1,2,nil)
	g1:Merge(g2)
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,g1,#g1,0,0)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	local tg=Duel.GetTargetCards(e)
	if #tg>0 then
		Duel.Destroy(tg,REASON_EFFECT)
	end
end
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	return c:IsReason(REASON_DESTROY) and c:IsReason(REASON_BATTLE|REASON_EFFECT) and c:IsPreviousLocation(LOCATION_ONFIELD)
end
function s.spfilter(c,e,tp)
	return c:IsCode(41091257) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	local g=Duel.GetFieldGroup(tp,LOCATION_ONFIELD,0)
	if chk==0 then return true end
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,g,#g,0,0)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_HAND|LOCATION_DECK|LOCATION_GRAVE)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local dg=Duel.GetFieldGroup(tp,LOCATION_ONFIELD,0)
	if #dg>0 and Duel.Destroy(dg,REASON_EFFECT)>0 then
		if Duel.GetLocationCount(tp,LOCATION_MZONE)<=0 then return end
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
		local g=Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(s.spfilter),tp,LOCATION_HAND|LOCATION_DECK|LOCATION_GRAVE,0,1,1,nil,e,tp)
		if #g>0 then
			Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP)
		end
	end
end