He gives your Elves (him too) the ability to untap when they tap on your turn and grow with a +1/+1 counter, but just once per turn
Simic Midrange is surprisingly good, but if youd played with Nissa, Who Shakes the World in combination with Hydroid Krasis, you kinda know what youre getting into
While you could opt for Terra, Magical Adept from the main set who has a WUBRG color identity in Commander maybe youre wanting to jam a more tried and tested Commander
Bumi, Unleashed A lot of Bumi, Unleasheds promise comes from its combo potential if youre able to turn it into a land somehow, mainly with Ashaya, Soul of the Wild
If you have all of this put together, you can cast infinite copies of Dramatic Reversal