I can see Thassa, Deep-Dwelling or Heliod, Sun-Crowned ending up as the best when the dust settles, but my current ranking has Purphoros as the best
You can recur most of your combo pieces with Teshar or one of the retrieving creatures, and some of the available combo pieces can perform double duty as protection, too
Giving all of your creatures trample is powerful, and allows you to keep pushing damage through over your opponents' blockers
Rad counters give your proliferate spells new purpose, and there are tons of ways to take advantage of milling everyone
My Verdict: Modern Horizons 3 Commander deck Creative Energy is perfect for those seeking dynamic, high-energy gameplay with strategic depth
The fact itll mill you is low-key nuts, to be honest, and getting a Mimeoplasm adjacent effect when you want to can potentially come in clutch