Bastion, Adaptive War Machine

Affinity for Artifacts (This spell costs {1} less for each artifact you control),
Defender, vigilance

Grenade - {r},{t}: Bastion deals 2 damage to any target. Gain {e} (Energy Counter)

Tank Mode - {1}{w}: Bastion gains +3/-2 and loses Defender until end of turn. Gain {e}{e}.

Artillery Ultimate - {e}{e}{e}{e}{e},{t}: Deal 5 damage
to up to 3 targets divided as you choose.