This guide will help you with the best of them, blue, but the world is your oyster
The trigger happens for each creature, so you can reach 100 percent coolness in a single combat with five creatures with flying or haste
Companion is the kind of mechanical innovation with a very obvious and in some ways reasonable motivation why not try to replicate the nuanced deck-building and reliable gameplay of Commander in other formats
Still, if you are a Green Auras deck and you're not interesting in suiting up your commander with them (can't think of any), this might be a good option
Black cant run Timmerian Fiends, as they are banned
While it does take a little bit of a mana commitment and has plenty of ways of being interrupted, both options let you just take the biggest thing you have and stick it on the battlefield