[{quoted}](name=A Bad Nasus,realm=NA,application-id=LqLKtMpN,discussion-id=nIEJ3RIQ,comment-id=00000000,timestamp=2019-04-10T21:59:05.787+0000)
The thing is malz's passive also acts as a spellshield so depending on how the enemy's ability is coded, like fizz ult where it drops an aoe only to attach to malz anyway, it seems like illaoi's e condition is indefinite. Needs some testing with banshee's and morgana/sivir to check for consistency.
morg could shield against it, but cannot anymore. Pretty sure August changed it after i told him about it on twitter, using the Malzahar comparison.
Since he changed it that means it's intended. These abilities don't say they block the ability. They say they negate CC, which Illaoi's E isn't.