I feels like she's played every game and is dominating toplane, she is nearly impossible to gank after she hits level 6. Can something be done about her? I'd like to not feed a player constantly making placement mistakes because he plays a champion which ult gets stronger the more champions she fights against.
Ok sure but why4 votesIllaoi is of poor champion design by nature, and if she isn't allowed to 1v5 a team of divers with her broken kit, her winrate and playrate will plummet to 0 due to having no utility and no threat factor
She should have never been given that kit in the first place
Jamaree1 votesDodge her skillshots.
Hextech OwI1 votesDodge her skillshots.
It helps a lot
DlCKBU771 votesdodge her soul pull, her tentacle slam, and you automatically win. if you suck at dodging, get bramble + ninja tabis because she's completely reliant on tentacle slams to sustain.
DragonShea1 votesAlright you bronze scrub listen up.
Illaoi does a lot of damage through her tentacles and spirit hooks, so you need to constantly move around and keep her from landing hits. Illaoi relies on you being scared of her insane damage but she can also get bullied hard by those that at least are willing to fight her head on and can move around her tentacles. even immobile champs like 
facefight or even kill her in an all out brawl using both their ults. Also her tentacles heal her for a small amount and her spirit hook can deal extra damage with both you and your spirit gets rekt by a tentacle and that my friend, is gonna fucking hurt.
so in a nutshell.
Peace out from a gold/sliver player
Arctical1 votesI personally don't find her a threat(anymore a least). All you have to do is keep clam and keep a minion between you and her.
ViciousSummoner1 votesGonna need to make that a turret when she smacks you with her Q.
KVbqbFsC8e1 votesShe needs to be reworked.