To confer with the paper to be a source of Tips and reasoning, given that proper references are presented. U-switch is for Psychic types--you most likely will never OHKO them in any case so you don't need to stay in. Fly is there since Crobat's movepool is de facto bad https://beckettiepyt.ageeksblog.com/35213155/what-does-hire-someone-to-write-my-hbr-case-study-mean