Illaoi is just flat out jacked up

I just hit an olaf in a game with FIVE tentacles at once, which each did 450 damage, at the time he had 1600 HP, with only randuins for armor, and he not only survived with no problem, he took ZERO DAMAGE FROM THE HITS..

Illaoi is suppose to heal for 5% of her missing HP per champion hit per tentacle with her kit... the last game i was in where i played her, i was hitting 3-4 people with 5-6 tentacles and barely healing even with spirit vissage... not only that, NONE OF THEM HAD HEAL REDUCTION ITEMS OR ABILITIES...

this champion just flat out is jacked up... she has such a cool concept, but for fucks sake, the execution with this chick is complete and utter shit