This is such a powerful ability for a non-identity card! Stealing a minion is like killing the minion and deploying an ally copy, but unlike Phoenix's Mind Control, Karma sticks around to grant you an additional block (the downside is an extra consequential damage for each use of Karma's minion). You don't need to steal that big a minion to get your 5 resources worth...even something with 3 health and 2 ATK gives fine value...but stealing a Sentinel Mark VIII or Tyrannosaurus Rex will swing the entire game in your favor. Karma is a situational card, but I am happy playing situationally powerful cards in Champions since the floor of any card is to be a resource for another card. Should see a lot of play in high-performing decks!
Xi'an Coy Manh
Response: After you play Karma from your hand, choose a non-ELITE minion. While Karma is in play, take control of that minion and treat it as a CONTROLLED ally with a blank text box. Its THW is equal to its printed SCH and it takes 2 consequential damage after it thwarts or attacks.