Knockout Maneuver is solid, but everything else feels a bit too dependent on other pieces
Back then, the plane was being taken over by the Eldrazi - basically MTGs versions of the eldritch old gods - and the already horror-themed inhabitants were being warped into new, and substantially more tentacly, shapes
Some great targets for Rex, Cyber-Hound brain-counter include Arcanis the Omnipotent, Horseshoe Crab, Pili-Pala, and Tekuthal, Inquiry Dominus
"Now that UB sets are regular parts of the game, do you think UB commander decks like Warhammer are less likely?"
In Limited, however, youre restricted to the cards in your pool, and finding enough playable action cards is far more difficult
3 power makes it a much better blocker, able to chip in for meaningful damage here and there, and a real threat later game when your hand is deployed and you are attacking with the team