Leovold costs 3. Xander costs 7. I don’t really like the argument that a moderately high CMC alone excuses any ills, but he’s pretty late to come out, and telegraphed. And, his effects aren’t even that big.
Who runs targeted discard in EDH? That hurts, but it only hurts badly (as compared to
Mind Rot type cards) if you have a big hand in the first place, and it’s only one player.
The attack trigger… I
wish they’d done something else, because that’s kinda lame, but half the time that’s a huge boon to someone, and anyway you have to attack which makes it rather harder to trigger. I think I’d actually have preferred something like lose half life, but only on taking damage.
The death trigger is potentially pretty devastating. Again, though, it’s only vs one player, and then the others can
gang up on you.
For this guy to do anything game-winning you kind of need to keep killing and reanimating him which is totally possible but rather a lot more work, and is the sort of strategy that can already let you do all kinds of crazy degenerate things. This deck doesn’t even seem to do that for the most part, it looks more like blink so mass discard, and frankly there are probably cheaper ways to do that.
The single-target nature of this guy makes him potentially un-fun but hardly overpowered. The chances of him getting banned feel like approximately zero.