This doesnt mean you cant put legendary creatures like Jazal Goldmane at the helm of a token deck in Commander you can and your deck will likely see some success through always having a way to close the game
Prized Unicorn is an exception, and is best used when an opponent has enough creatures to block and absorb all the damage Mowu could do
But it can block alone, and thats a huge deal
If a source would deal damage to you or a permanent you control, prevent half that damage, rounded up
The Herald is a great sink for infinite mana, while Circu and Consuming Aberration can work with Dramatic Reversal and Isochron Scepter (see below) to mill your opponents out
At the cost of 10 mana and sacrificing Realmbreaker, the player can search their library for any number of Praetors, or Phyrexian bosses, and put them right onto the battlefield to close out any game