Fans of the Lava Dome Pokmon will love its VMAX debut, as it features the fierce Fire/Steel-type Pokmon roaring into action with its epic giant form
You can only use this effect of "XYZ Hyper Cannon" once per turn
It works fine with being turned on before the match starts and remaining on after the match
The most powerful decks of the past formats have been those capable of setting up a checkmate situation (Yata), swarming the field with monsters (Teledad, Lightsworn), or just executing a combo to leave the opponent without resources (Wind Up, Infinity w/Thrishula)
Plus, some cards (such as [c]Ox of Agonas[/c], which well see later down this list [spoiler!]), work better from your graveyard, so discarding them wont even feel like a downside