
Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)
Whenever a Human deals damage to you, destroy it.
Other non-Human creatures you control get +1/+1 and have undying. (When a creature with undying dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)
Mikaeus, the Unhallowed has 11 printings, first in Dark Ascension (2012). EDHREC ranks it #1,329 among Commander cards. It appears most in Wilhelt, the Rotcleaver decks (10,709 on EDHREC). It has 4 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.