I'd also like to add that he said it could hurt stall teams. This is not because of its power, but because it can set up in many common stall pokemon's faces. Espeon can't really do that without Morning Sun, which is prone to getting stalled out and weather dependent, or Wish+protect, which leaves you with one attacking move. Once Xatu is at +6, it can definitely hurt things. Edit: Uh, this is... how shall I say this... against Stall teams. Like I said. So those are often not carrying massive offensive powerhouses. Latias and Arceus can and often do get heavy boosts against stall teams, and would easily get more if immune to status without having to sub/refresh, as well as being totally immune to roar/whirlwind. I've even seen them do it against more offensive teams, where the only reason they didn't go all the way is a lack of a need to, not the inability to.