Nikolai Balthasar

Nikolai Balthasar can only be equipped to artifacts. At the beginning of your combat, tap all artifacts your opponents control. Equipped artifact is a creature in addition to its other types. If that artifact is not a vehicle, its power and toughness are equal to its mana value. Reconfigure {2} ({2}: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn’t a creature.)