Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
During the Battle Phase: Shuffle into the Deck, from your hand, field, or GY, the Fusion Materials that are listed on a "Gladiator Beast" Fusion Monster, then Special Summon that Fusion Monster from your Extra Deck, ignoring its Summoning conditions. You can only activate 1 "Gladiator Beast United" per turn. You cannot declare attacks the turn you activate this card, except with "Gladiator Beast" monsters.
--団結する剣闘獣
--Gladiator Beast United
--Scripted by Eerie Code
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Fusion.CreateSummonEff(c,aux.FilterBoolFunction(Card.IsSetCard,SET_GLADIATOR),Card.IsAbleToDeck,s.fextra,Fusion.ShuffleMaterial,nil,nil,nil,0,nil,FUSPROC_NOTFUSION|FUSPROC_LISTEDMATS)
	e1:SetCountLimit(1,id,EFFECT_COUNT_CODE_OATH)
	e1:SetCondition(s.condition)
	e1:SetCost(s.cost)
	c:RegisterEffect(e1)
	Duel.AddCustomActivityCounter(id,ACTIVITY_ATTACK,s.counterfilter)
end
s.listed_series={SET_GLADIATOR}
function s.counterfilter(c)
	return c:IsSetCard(SET_GLADIATOR)
end
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsBattlePhase()
end
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetCustomActivityCount(id,tp,ACTIVITY_ATTACK)==0 end
	local e1=Effect.CreateEffect(e:GetHandler())
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_CANNOT_ATTACK_ANNOUNCE)
	e1:SetProperty(EFFECT_FLAG_IGNORE_IMMUNE+EFFECT_FLAG_OATH)
	e1:SetTargetRange(LOCATION_MZONE,0)
	e1:SetTarget(s.atktg)
	e1:SetReset(RESET_PHASE|PHASE_END)
	Duel.RegisterEffect(e1,tp)
	aux.RegisterClientHint(e:GetHandler(),nil,tp,1,0,aux.Stringid(id,1),nil)
end
function s.atktg(e,c)
	return not s.counterfilter(c)
end
function s.fextra(e,tp,mg)
	return Duel.GetMatchingGroup(Fusion.IsMonsterFilter(Card.IsAbleToDeck),tp,LOCATION_GRAVE,0,nil)
end