Of course, it's less impactful for a mechanic to be dubbed 'Commander Evergreen' than regular Evergreen, since Commander games have smaller sets, and more mechanical complexity in the first place
Chandra, Fire of Kaladesh is a double-faced card
You can choose five flips during each of your combat steps without the potential risk of losing 10 life, drawing yourself a good number of cards in the process
It has haste, so it can attack right away, and its "delirium" effect not only boosts it from 3/2 to 4/3, but gives it the "trample" ability
I know I said that this is more of a competitively slanted card, but it actually has some decent chops in EDH as well at around 1000 decks its a big player in both mill decks and Rogue decks (and mixtures of the two), of course being very popular with Anowon, the Ruin Thief
With a cost-reducing effect and a haste anthem, Warchief pours gasoline directly onto the fire of an already aggressive creature type