Replace Awaken the bear with Titanic Growth, this costs 1 forest and 1 other mana to cost, and it allows you to put a +4/+4 on target creature which is good, try to put in Deity of Scars, you can either pay with black or green mana, this is a 7/7 but it comes in the battlefield with 2 -1/-1 counters and you can pay 1 black or green mana to get rid of one or you can pay 2 black or green mana, this also has trample which would go good with your deck.

That's all the cars I know about that would be good with your deck, I don't know much about commander though, all I know about is Standard and modern, but I am willing to help you either way.