Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
1 Tuner + 1+ non-Tuner monsters If this card is Special Summoned: You can banish all Insect monsters from your GY; all monsters your opponent currently controls lose 500 ATK/DEF for each of your banished Insect monsters. If this card attacks a Defense Position monster, inflict piercing battle damage. If this Synchro Summoned card in its owner's control is destroyed by an opponent's card: You can Special Summon 3 of your banished Level 11 or lower Insect monsters.
--B・F－決戦のビッグ・バリスタ
--Battlewasp - Ballista the Armageddon
--Scripted by Eerie Code
local s,id=GetID()
function s.initial_effect(c)
	--synchro summon
	c:EnableReviveLimit()
	Synchro.AddProcedure(c,nil,1,1,Synchro.NonTuner(nil),1,99)
	--pierce
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_PIERCE)
	c:RegisterEffect(e1)
	--atk down
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetCategory(CATEGORY_ATKCHANGE)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_SPSUMMON_SUCCESS)
	e2:SetProperty(EFFECT_FLAG_DAMAGE_STEP+EFFECT_FLAG_DELAY)
	e2:SetCost(s.atkcost)
	e2:SetTarget(s.atktg)
	e2:SetOperation(s.atkop)
	c:RegisterEffect(e2)
	--special summon
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,1))
	e3:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e3:SetProperty(EFFECT_FLAG_DELAY)
	e3:SetCode(EVENT_DESTROYED)
	e3:SetCondition(s.spcon)
	e3:SetTarget(s.sptg)
	e3:SetOperation(s.spop)
	c:RegisterEffect(e3)
end
function s.cfilter(c)
	return c:IsRace(RACE_INSECT) and c:IsMonster() and aux.SpElimFilter(c,true)
end
function s.atkcost(e,tp,eg,ep,ev,re,r,rp,chk)
	local g=Duel.GetMatchingGroup(s.cfilter,tp,LOCATION_MZONE|LOCATION_GRAVE,0,nil)
	if chk==0 then return #g>0 and g:FilterCount(Card.IsAbleToRemoveAsCost,nil)==#g end
	Duel.Remove(g,POS_FACEUP,REASON_COST)
end
function s.atktg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(Card.IsFaceup,tp,0,LOCATION_MZONE,1,nil) end
end
function s.atkop(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetMatchingGroup(Card.IsFaceup,tp,0,LOCATION_MZONE,nil)
	local ct=Duel.GetMatchingGroupCount(aux.FaceupFilter(Card.IsRace,RACE_INSECT),tp,LOCATION_REMOVED,0,nil)
	if #g>0 then
		g:ForEach(s.op,e:GetHandler(),-500*ct)
	end
end
function s.op(tc,c,atk)
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_UPDATE_ATTACK)
	e1:SetValue(atk)
	e1:SetReset(RESET_EVENT|RESETS_STANDARD)
	tc:RegisterEffect(e1)
	local e2=e1:Clone()
	e2:SetCode(EFFECT_UPDATE_DEFENSE)
	tc:RegisterEffect(e2)
end
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	return rp==1-tp and c:IsSynchroSummoned()
end
function s.spfilter(c,e,tp)
	return c:IsFaceup() and c:IsLevelBelow(11) and c:IsRace(RACE_INSECT) 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)>2
		and not Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT)
		and Duel.IsExistingMatchingCard(s.spfilter,tp,LOCATION_REMOVED,0,3,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,3,tp,LOCATION_REMOVED)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<3 or Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT) then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectMatchingCard(tp,s.spfilter,tp,LOCATION_REMOVED,0,3,3,nil,e,tp)
	if #g>0 then
		Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP)
	end
end