if you call needing to land one skillshot to win lane a high skillcap i'd hate to see what a low skill character is
The boomerang skillshot got more depth than the ordinary skillshot and the bubble is better with walls. The ult might as well be useless for people that sucks but have a great impact for people that don't suck, and managing all the extra sum spells and item actives aint for your ordinary pleb. I would say she got a high skillcap for sure. :P
Annie got a low skillcap m8
edit: Thinking about it, Annie's skillcap is not super low seeing maneuvering the bear and zoning might need some practice. But yeah, she's a pretty no-brain champ other than that.