I was actually thinking of Reuniclus over Chandelure, since it covers Breloom's Psychic weakness, and is not only pretty bulky but can also serve as a Special sweeper. In addition to that it is one of the slowest pokémon on the metagame and as access to Trick Room. Besides that, it has access to the Magic Guard ability. That means we don't need to worry with entry hazards or status conditions, which allows it to switch in on a myriade of occassions to safely set Trick Room up