Gameplay Bug - Karthus Ult
Maybe this is supposed to happen, but the karthus ult applied deathfire touch before his ult actually went off. So I died to deathfire when I was just about use locket and save myself. Seemed kinda buggy to me but like I said maybe this is how it's supposed to work.
ult applies spell effects? I don't think generic spell effects would be allowed to be buggy so long, so maybe someone could go into a custom with a friend on the enemy team, buy 
or 
and see when it applies?