When Alharu, Solemn Ritualist enters the battlefield, put a +1/+1 counter on each of up to two other target creatures.Whenever a nontoken creature you control with a +1/+1 counter on it dies, create a 1/1 white Spirit creature token with flying.Partner (You can have two commanders if both have partner.)
As a result, one of the few pre-existing mice cards seems a likely choice for reprints
Stay with me, and lets take to the skies
I think many of those cards are excellent (catch me playing WB cat mutants in the MTGA preview event and chortling), but the most exciting and impressive thing about mutate is the cards they havent made yet
Unfortunately, the site still acts like it's the mid-00s and hasnt changed their layout much in the interim
Three mana for a commander that offers (limited) card advantage and becomes a relevant threat later in the game is well worth playing