Instead, what I saw when I played Expanded was a format with many different strategies
Maximizing this Sultai commander requires combining creatures with lots of keyword abilities (Nightveil Predator, Venomthrope) with cards that sacrifice them (Phyrexian Altar, Deadly Dispute) to stack a bunch of keywords on Rayami
it does very little against their deck and you need your Aether Vials online so you can use your lands to attack theirs at every opportunity
Tannuk gets a bit better if you can build around it, but every red deck obviously has red creatures that you can warp out if you want to, so itll also be generically good in any deck
One leads to Weevil Underwood and the other leads to Rex Raptor
Consequently, players interested strictly in winning will most likely have no better option than mono-red aggro as we move into the next Standard season