Grapple
So a champion with a grappling ability. hit a wall and do a arc swing in the direction around the mark.
hit a enemy or creature and swing past them slowing their movement and giving them a slight pull back.
what would be neat with the wall swing ability would be to have it go farther based on the angle you hit so its going to honestly effect the angle you are facing when you want to swing.
this ability will also allow to cross certain walls based on knowing the right angle to hit.
http://i.makeagif.com/media/11-27-2015/CT2u72.gif swing into a champion and stun them for 1 to 2 seconds.
http://24.media.tumblr.com/c61526ba4e536f53b5d4ed51a2207879/tumblr_mexra51J8K1ritteso1_500.gif because grappling hooks are cool http://www.trueswords.com/images/prod/ts-nbw46.jpg give the man a weapon / whip thing
https://s-media-cache-ak0.pinimg.com/564x/b7/8d/5f/b78d5fb7c83691aed7bfe8f507f6e929.jpg maybe a thief looking character.
??????