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Why would you switch it in on a Sylveon? *facepalm* like I said, in addition to countering BP teams, it can take out walls/stall and a lot of physical attackers as long as they don't have a SE attack so it's not completely useless like you're implying. Certainly better than a lot of the D rank...
Could Murkrow have a niche in OU for countering BP teams? Prankster Haze and Perish Song looks good to me.
HP and def investment with eviolite also allows it to take out a lot of physical attackers and walls. Mean look, perish song, roost, and switch out on last turn
Total taunt bait, but...
So I was browsing through Showdown and apparently Khangaskan gets Wish??? I'd love to try out some interesting sets with that, but how does it learn it? As far as I know, she doesn't get it as an egg move or via Move Tutor...