Many of the currently popular cards will... eventually leave the meta, sooner or later. When people summon AG I usually switch the toggle button to ON; as soon a it's the battle phase I flip Reactor Dragon face down with a canadia. They would need to have fortress on field in order to make Dragon Reactor immune to traps for one turn... which isn't likely to happen. Anyway, a floodgate works better
Back in Ultimate Rising time when all we have are normal monster beatdown decks, the SR rarity card Reinforcement is such a good card, but now it has been way powercreeped by the N rarity card Paleozoic Eldonia.