I can't help but be one of those that also feels that Zard may be OP. He's my friend's main ever since we started playing PM this summer, and every time we face off he continues to use his most annoying moves that seem to have ridiculous priority and range such as Zard's forward B, and his up tilt. I have not found any direct move that goes through it, and works as a great anti recovery move, a little too well in fact. I recently had another friend play against his Zard and the first words out of his mouth was that he was OP, and this was after many, many matches.
Not to sound too boastful, but we're both very adept at the smash series, and through our many local tourneys it's always been he and I playing as the final two. But it seems as if he's gravitated to another broken char. since his vanilla brawl char. was MK. It feels like a justified observation since he uses Zard in a very similar "cheap" way.
Now it's not that I can't beat his Zard, I've done it quite a few times, as many different chars. such as Mario, DK, Wario, ROB, Lucas etc. but even with that it certainly feels that Zard needs a bit of a rebalance. I'm unsure of the current matchup numbers, but there's a definite inconsistency in how each of our match ups play out. I've never had this much trouble with any of his other chars., like Lucario, squirtle, or Ivysaur.
So yea I'm a proponent that Zard is a bit OP even if it's just a couple of moves.