User blog comment:Emptylord/Custom Champion - Nighthawk the Winged Fury/@comment-24420226-20160525225707/@comment-26378838-20160526080706

Well, I can see two solutions to your problem considering a passive or active Wallcrawler:
 * Passively, make it have a conditional stealth so Nightcrawler can have some play in lanes (even botlane if you give him a W with utility, since Abduction and Catch the Wind give him some supportive power even if he's mainly an assassin, but then again people spam support, so why not?)
 * Actively, make it a toggle ability with a movement speed buff (but better than, because that one is just awful).