Arcee and Jetfire make for a decent duo and can utilize the +1/+1 counters from Optimus, while Slicer (mysteriously fighting on the side of good this time) is just a straightforward beatstick
Just Fusion Summoning Guardian Chimera provides a lot of card advantage
Top 3 Green Common/Uncommons: Elvish Regrower: EtB get a permanent from the yard to hand is solid value Quakestrider Ceratops: Queza is over the moon, but theres more than one deck happy to see a 12 power creature for just six mana
This common land comes from the Mystery Booster 2 set, a special set designed for Chaos Drafting and is exclusive to conventions
Otherwise, youve just got a set of four decks with unique twists on typical tried-and-true themes
Brawl offers a much different experience than Commander, uses a smaller card pool, and has a lot fewer cards to "compete" with