Forum talk:Neekerivittu/@comment-4832742-20121113160208/@comment-4917560-20121113171353

I'd say it does make you immune to dmg.It actually states that you are untargatable WHILE YOU DASH (Shaco becomes 0,5 sec untargetable as well when he ults).After it, you can be targeted, so any projectile,karthus ulti or aoe spell will deal no dmg if it hits you while you dash.If you get damage then it's a bug because Riot clearly states that you are untargetable like in Shaco ult.