Kyurem

Kyurem is one of the best wallbreakers in Almost Any Ability: nothing can reliably switch in on it due to its great power and movepool. It has excellent mixed attacking stats, although its movepool favors special attacking. Kyurem is far from frail as well: 125 / 90 / 90 bulk is fantastic for an offensive Pokemon. Ice is also a great offensive typing, hitting many Pokemon super effectively. However, it is poor defensively, giving Kyurem weaknesses to common Fighting moves as well as a weakness to Stealth Rock. In fact, Kyurem hates all entry hazards, so Rapid Spin or Defog support is mandatory. Average-to-low Speed hampers Kyurem against offensive teams, and it faces stiff competition from Latios and Latias as an offensive Dragon-type, as they both are much faster and have better defensive typing. However, Kyurem has STAB Ice Beam and an easier time against Steel-types due to Earth Power and Focus Blast to set itself apart from the Eon twins.