I love the flavor of being able to swap between creatures at instant speed, which Im sure will lead to some cute interactions or combos
The combination of evasion, card selection, and combat tricks makes Kamiz a strong Commander option
I think the biggest issue a lot of these background commanders have is that, even when paired with a great background, simply execute strategies that already exist but in a worse fashion
This is how Infect, Amulet Bloom, and Twin approach the Burn matchup (not to mention decks like Storm, Griselbrand, and Affinity)
Or you could load the equine up with equipment, to bring out even bigger creatures
This is all in on being aggressive and going wide -- even limited to only buffing attackers