Whenever deals combat damage to a player, that player gains control of a permanent you control of your choice. Then each player loses life and discards cards equal to the number of permanents they control but don't own.
The Rakdos "Zedruu".
Demonic Pact, Forbidden Crypt, Immortal Coil, Lich's Mastery, Nefarious Lich .. yikes!!!
Lich's Tomb, Oath of Lim-Dûl, Phyrexian Negator .. also yikes!!
In your turn your commanders have indestructible
The partner Zurgo Helmsmasher. Will see a lot of pairing with board wipe decks.
T: Add C
3, T, Pay life equal to the amount of colors in your commander's color identity: Draw a card.
Slam dunk in every colorless commander deck ever. Probably will go into a lot of mono-colored decks that don't rely on land types all that much. To be honest can go any deck if you can afford colorless lands, life doesn't matter in commander. The fact that it doesn't require another card in play makes this a very strong colorless land.