It is first and foremost a great check to Xerneas, with the amazing ability Inner Focus which prevents it from getting flinched by Fake Out and then it can proceed to Taunt Xerneas. It also has access to other great support moves such as Tailwind, Quick Guard which is very relevant with the usage of Prankster Pokemon such as Whimsicott and Liepard, and Super Fang, coupled with an amazing speed tier.What does Crobat do that makes it so good?