Weavile

Weavile has two valuable attacks in Pursuit and Ice Shard, which allow it to fulfill specific roles on a team. Weavile is also blisteringly fast and has a decent level of power, but is let down by its frailty, weak STAB moves, and weakness to entry hazards. While Weavile is flawed, it fits into its niche in Dream World almost perfectly. With STAB Ice Shard Weavile can revenge kill dangerous Dragon-type sweepers such as Dragonite, Salamence, and Choice Scarf Garchomp. STAB Pursuit also allows Weavile to pick off dangerous Pokemon who are vulnerable to the move; most prominently Choice Scarf Chandelure locked into any non-Fire-type move, as well as Latios and Starmie. Weavile struggles to do much outside of this role due to the lack of a powerful STAB move, but its unique combination of niches allows it to compensate for this.