Rival seer and apprentice is an obvious setup. Seer scans the rival night 0, and they both know where they stand. Instead the apprentice misread the rule and went crazy.
As for selling out your rival to a wolf pack, that's just stupid. Your team comes first, it's irrelevant if your rival is still alive if the other side wins. Patience is a far better approach. In fact... I've been an unclaimed apprentice and rival to the seer, and that's exactly what I did. Voted him when he was run up, but otherwise just let things get on with it. The odds are very high one or both of you will die anyway. Me in that case, with the seer going on to lead the village to victory.