I must say that I was actually surprised with Mamoswine and Pignite tying in their battle. You'd think that with Mamoswine being a fully evolved Pokémon, while Pignite is in the middle stage, and with Mamoswine's overwhelming amount of experience it should actually have been able to beat Pignite. It's true that Pignite has a type advantage, but Mamoswine still has some other advantages that should compensate for that. And to think, there's actually a chance with that thing beating Dragonite.
Pignite's either way more powerful than I orginally thought it was, or Mamoswine is simply a very overrated Pokémon. Its moveset wasn't really that impressive either. And... woah. Beartic have two powerful Ice-type moves, Ice Beam and Icicle Crash. Mamoswine has one Ice-type move, that really isn't that powerful (at least not in the games, that could be completely different in the anime). With Ice Shard being its only Ice-type move its victory over Dragonite would be even more bad than it already was, considering that Beartic wasn't able to beat it. Woah
With this episode being the second episode in the tournament arc my fears for Dawn winning only increased. There's really no need for Dawn to advance further into this tournament, as it has absolutely nothing to with her goal. It'd be way better if Iris advanced, she's in much more need of the experience she'll receive than Dawn is, and Axew definitely deserves to get a battle too. But... considering that she's making a guest cameo, she'll probably make it pretty far, probably to the final. I wouldn't actually mind seeing her and Ash to battle it out in the tournament, but only if Ash beats her.
Also, I must say that it's pretty weird that this really is BW91. That means that the second round begins in the second episode, while the second round started in the third episode in the Donamite arc. I guess there really won't be that many important round 1 battles or maybe they'll be rushed as hell.