Tavish, the Breaker

Noncreature, non-Equipment artifacts you control are Equipment in addition to their other types and have "Equipped creature gets +1/+0" and equip {1}.

When Tavish, the Breaker attacks, you may
pay {2}. If you do, sacrifice an Equipment attached to Tavish, Tavish gains +X/+0 until end of turn, where X is the sacrificed Equipment's mana cost plus 1.

Ragtag crew (You can have two commanders
if both have ragtag crew.)