all cards with mutate mtg Understanding the Mechanic in Magic: The Gathering How to mutate in Magic:

Great for players who love adding style and individuality to their decks

This five-colour (as you'd expect) creature removes the legendary rule from all Slivers

Sakashima of a Thousand Faces This Commander-able legendary dork with the ability to ETB as a copy of your dorks only and then turn off the legendary rule and then count as it's other abilities

(Again, this is assuming no sudden spikes in card prices leading to mass buyouts)

This might not be a Commander stalwart (1% usage on EDHREC), but it should be a must-add for Treefolk decks that feature a majority of creatures

You can tap it to add one colorless mana, or you can tap it and pay one life to generate one mana of any color, but this mana must be used to cast Vampire spells