Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Target 1 "Gagaga" monster in your Graveyard; Special Summon it and equip it with this card. When this card leaves the field, destroy the equipped monster. If this card is sent to the Graveyard because the equipped monster was used as an Xyz Material: All Xyz Monsters you currently control gain 300 ATK.
--ガガガリベンジ
--Gagagarevenge
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetTarget(s.target)
	e1:SetOperation(s.operation)
	c:RegisterEffect(e1)
	--Destroy
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_CONTINUOUS+EFFECT_TYPE_SINGLE)
	e2:SetCode(EVENT_LEAVE_FIELD)
	e2:SetOperation(s.desop)
	c:RegisterEffect(e2)
	--atkup
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,0))
	e3:SetCategory(CATEGORY_ATKCHANGE)
	e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_F)
	e3:SetCode(EVENT_TO_GRAVE)
	e3:SetCondition(s.atkcon)
	e3:SetOperation(s.atkop)
	c:RegisterEffect(e3)
end
s.listed_series={SET_GAGAGA}
function s.filter(c,e,tp)
	return c:IsSetCard(SET_GAGAGA) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.filter(chkc,e,tp) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingTarget(s.filter,tp,LOCATION_GRAVE,0,1,nil,e,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectTarget(tp,s.filter,tp,LOCATION_GRAVE,0,1,1,nil,e,tp)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,0,0)
	Duel.SetOperationInfo(0,CATEGORY_EQUIP,e:GetHandler(),1,0,0)
end
function s.eqlimit(e,c)
	return e:GetOwner()==c
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if c:IsRelateToEffect(e) and tc:IsRelateToEffect(e) then
		if Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)==0 then return end
		Duel.Equip(tp,c,tc)
		--Add Equip limit
		local e1=Effect.CreateEffect(tc)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_EQUIP_LIMIT)
		e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
		e1:SetReset(RESET_EVENT|RESETS_STANDARD)
		e1:SetValue(s.eqlimit)
		c:RegisterEffect(e1)
	end
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	local tc=e:GetHandler():GetEquipTarget()
	if tc and tc:IsLocation(LOCATION_MZONE) then
		Duel.Destroy(tc,REASON_EFFECT)
	end
end
function s.atkcon(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=c:GetPreviousEquipTarget()
	return c:IsReason(REASON_LOST_TARGET) and c:IsReason(REASON_DESTROY) and tc:IsLocation(LOCATION_OVERLAY)
end
function s.atkfilter(c)
	return c:IsFaceup() and c:IsType(TYPE_XYZ)
end
function s.atkop(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetMatchingGroup(s.atkfilter,tp,LOCATION_MZONE,0,nil)
	local tc=g:GetFirst()
	for tc in aux.Next(g) do
		local e1=Effect.CreateEffect(e:GetHandler())
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		e1:SetValue(300)
		e1:SetReset(RESET_EVENT|RESETS_STANDARD)
		tc:RegisterEffect(e1)
	end
end