Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
The equipped monster gains 1000 ATK and loses 1000 DEF. Once per turn, during your Standby Phase, pay 1000 LP or destroy this card.
--凶暴化の仮面
--Mask of Brutality
local s,id=GetID()
function s.initial_effect(c)
	aux.AddEquipProcedure(c)
	--Atk,def
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_EQUIP)
	e2:SetCode(EFFECT_UPDATE_ATTACK)
	e2:SetValue(1000)
	c:RegisterEffect(e2)
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_EQUIP)
	e3:SetCode(EFFECT_UPDATE_DEFENSE)
	e3:SetValue(-1000)
	c:RegisterEffect(e3)
	--cost
	local e5=Effect.CreateEffect(c)
	e5:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
	e5:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_UNCOPYABLE)
	e5:SetCode(EVENT_PHASE|PHASE_STANDBY)
	e5:SetRange(LOCATION_SZONE)
	e5:SetCountLimit(1)
	e5:SetCondition(s.mtcon)
	e5:SetOperation(s.mtop)
	c:RegisterEffect(e5)
end
function s.mtcon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsTurnPlayer(tp)
end
function s.mtop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.CheckLPCost(tp,1000) and Duel.SelectYesNo(tp,aux.Stringid(id,0)) then
		Duel.PayLPCost(tp,1000)
	else
		Duel.Destroy(e:GetHandler(),REASON_COST)
	end
end