Oath of Conquest

Whenever your commander kills a creature in
combat or deals combat damage to a Player or
Planeswalker, you get a Glory Counter. If you
attack with a creature you own that is not your
commander, you lose this Oath at the beginning
of your next End-Step.
Your Commander and creatures you control but
don't own get +1/+1 for each Glory Counter.
Kneel to the Crown. Hail to the One.