Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Once per turn, during your Main Phase: You can destroy up to 3 other "Igknight" cards you control, then return an equal number of cards your opponent controls to the hand. If this card is sent to the Graveyard: You can add 1 face-up "Igknight" Pendulum Monster from your Extra Deck to your hand.
--イグナイト・バースト
--Igknight Burst
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)
	e1:SetTarget(s.target)
	c:RegisterEffect(e1)
	--destroy
	local e2=Effect.CreateEffect(c)
	e2:SetCategory(CATEGORY_DESTROY+CATEGORY_TOHAND)
	e2:SetType(EFFECT_TYPE_QUICK_O)
	e2:SetCode(EVENT_FREE_CHAIN)
	e2:SetRange(LOCATION_SZONE)
	e2:SetCountLimit(1)
	e2:SetCondition(s.descon)
	e2:SetTarget(s.destg)
	e2:SetOperation(s.desop)
	c:RegisterEffect(e2)
	--to hand
	local e3=Effect.CreateEffect(c)
	e3:SetCategory(CATEGORY_TOHAND)
	e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e3:SetCode(EVENT_TO_GRAVE)
	e3:SetProperty(EFFECT_FLAG_DELAY)
	e3:SetTarget(s.thtg)
	e3:SetOperation(s.thop)
	c:RegisterEffect(e3)
end
s.listed_series={SET_IGKNIGHT}
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	if s.descon(e,tp,eg,ep,ev,re,r,rp) and s.destg(e,tp,eg,ep,ev,re,r,rp,0) and Duel.SelectYesNo(tp,aux.Stringid(id,0)) then
		e:SetCategory(CATEGORY_DESTROY+CATEGORY_TOHAND)
		e:SetOperation(s.desop)
		s.destg(e,tp,eg,ep,ev,re,r,rp,1)
	else
		e:SetCategory(0)
		e:SetOperation(nil)
	end
end
function s.descon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsTurnPlayer(tp)
		and (Duel.IsMainPhase())
end
function s.desfilter(c)
	return c:IsFaceup() and c:IsSetCard(SET_IGKNIGHT)
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.desfilter,tp,LOCATION_ONFIELD,0,1,e:GetHandler())
		and Duel.IsExistingMatchingCard(Card.IsAbleToHand,tp,0,LOCATION_ONFIELD,1,nil)
		and e:GetHandler():GetFlagEffect(id)==0 end
	e:GetHandler():RegisterFlagEffect(id,RESET_PHASE|PHASE_END,0,1)
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,nil,1,tp,LOCATION_ONFIELD)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	if not e:GetHandler():IsRelateToEffect(e) then return end
	local g=Duel.GetMatchingGroup(Card.IsAbleToHand,tp,0,LOCATION_ONFIELD,nil)
	local ct=#g
	if ct==0 then return end
	if ct>3 then ct=3 end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local dg=Duel.SelectMatchingCard(tp,s.desfilter,tp,LOCATION_ONFIELD,0,1,ct,e:GetHandler())
	local ct2=Duel.Destroy(dg,REASON_EFFECT)
	if ct2>0 then
		Duel.BreakEffect()
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_RTOHAND)
		local rg=g:Select(tp,ct2,ct2,nil)
		Duel.HintSelection(rg)
		Duel.SendtoHand(rg,nil,REASON_EFFECT)
	end
end
function s.thfilter(c)
	return c:IsFaceup() and c:IsSetCard(SET_IGKNIGHT) 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_EXTRA,0,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,tp,LOCATION_EXTRA)
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_EXTRA,0,1,1,nil)
	if #g>0 then
		Duel.SendtoHand(g,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,g)
	end
end