5/16/2016 - That discard is solely black and countermagic solely blue causes those mechanics to more homogenous than most. That's what intrigued me about Jack's 'burn' mechanic: It's a red (arguably) discard mechanic.
How else might red emulate discard?
I have no idea if this is under-costed or not. Grabbing cards at random is significant, but sometimes it does nothing because the target was going to play them anyhow.