Running this kind of creature in the command zone opens you up to playing more cheap symmetrical wraths
This effect is fantastic nowadays because tons of decks actually rely on the graveyard with Dragons Rage Channelers, Murktide Regents, Snapcaster Mages, Wrenn and Six and even reanimation strategies through Unburial Rite or Living End
Of course this isnt really a new mechanic at all, just a reimplementation of the saga mechanic introduced with Dominaria (and later reintroduced with Theros: Beyond Death and Kaldheim)
These rules are either applied by the tournament host or by the players agreement
Vrondiss was definitely the strongest of the initial wave of die rolling commanders, but it has the least support for building around die rolling (and a bunch of other compelling themes)
However, Ninetales should be the target for this as its 90-power Flamethrower is boosted to 120, which will do insane damage, especially to Grass Pokemon, who get an extra +20 damage on top of this