Talk:Shaco/@comment-26351255-20150428023519/@comment-4922088-20150429031805

Karthus ult is targeting you at the last second, Zed's ult is technically a delayed damage effect. Once the ability is on you the only way to avoid it is to go invunerable or purge it.

You can however dodge the application of the ult by going untargetable at the last moment before he lands and applies it.