Thanks to Wilds of Eldraine's new Roles mechanic, this card works wonderfully alongside the accompanying enchantments by bolstering the attached creature's power and toughness
There are exceptions, like dredge or Underworld Breach decks, but self-mill decks tend to grind
Any mutated creature with a commander in it somewhere will do commander damage, but if it's exiled or killed all those cards will go with it
I didnt buy the argument of Lightning Bolt and Bloodbraid Elf keeping the card in check, as I played with Jace a lot in Standard and in Legacy, where both of those cards were legal yet the planeswalker ran rampant
This is best in the decks most focused on speed but I think that it is bad enough on average and sufficiently polar in performance to really only be something you want as a sideboard option
Cast it from your hand with two in the graveyard, and then cast one in your graveyard, too, and draw