Rex's pokemon

Brutus - level 36 physical based Torterra tank. Notably wore a Thick Fat tea cozy.

Nero - level 36 mixed attacker Charizard. Learned Blast Burn somewhere along the line.

Vega - level 36 pure attacking angry Tauros. Outrage is his hard hitter.

Sally Ann - level 30 sort-of-mixed Ampharos. Was taught Thunderbolt.

Dizzy - Level 34 special attacker Magnezone. Notably knows Volt Switch and Mirror Coat.

Carol - level 38 Chatot with a Flying Plate. With Rex's Coaching he was awesome. That's all you need to know. Has Heat Wave.

Mona - level 38 Omanyte. Had ice beam!

Isabella - level 40 tanklytuff. Shadow Ball, Heal Bell, and general support moves.

Breaker - level 40 Adamant Pupitar. Pretty much the only pokemon Rex didn't get to use by the end of the game. Probably would have ended up a hell of a tyranitar by the time of challenging the four sheriffs to their little elite 4 thing.