Visse, Renegade Artificer

+1: Gain 2 energy counters or sacrifice an artifact and create a 1/1 colorless Thopter artifact creature token with flying.
-3: Destroy target creature or artifact. Pay 3 energy or lose life equal to its mana cost.
-7: Search your library or graveyard for a vehicle and put it onto the battlefield. Until end of turn it is a creature with haste and indestructible.