At the beginning of your upkeep, exile the top card of your library. If it's a nonland card, you may cast that card this turn. Whenever you cast your third spell in a turn, you may transform Vance's Blasting Cannons.

(Transforms from Vance's Blasting Cannons.) {T}: Add {R}. {2}{R}, {T}: Spitfire Bastion deals 3 damage to any target.