“Recommended: Standard Runes & Ignite
Tips: W her W-AA. Learn to dodge her E or dodge the game. If you get hit by E, instantly run away from spirit range. Dodge tentacles by moving straight at a 90 degree angle. When she R's, just disengage.”
“Illaoi has to be played through her passive. Keep taking the tentacles out as they grant you (5g) and prevent her from landing chain abilities, like when she uses her ultimate and hits a target nearby. That being said her ult needs to HIT a champion to activate. It's flashable and avoidable if you Zhonya. However, she is a very simple champion to deal with I would suggest learning to bait out her (E) and side step her tentacles (E) combo and her (Q). If you allow her tentacles to remain and they hit you, she will gain sustain for every tentacle that strikes a champion.
“This Champion has a trash Design. All her damage depends on hitting her E. Her whole Kit Revolves around a Gimmick.
All her damage is from Tentacles and they are All skillshots.
Parry Her E or her Ultimate and you should be fine.
It's Possible to bait her ultimate out and run away. Her Ultimate is all her damage after the Laning Phase.
Kill her tentacles when possible without getting hit by E.
 She falls off late-game so you can play safe until then as well
Don't ask for Ganks if you're losing or she will get a double kill.
“This lane isn’t too bad. I start Q in this lane and last hit minions to get my passive stacked (don’t be afraid to auto her to make sure you don’t lose your stacks). When the wave is about in the middle, when you hit level 2 (preferably before her), land your E and try to all in her, you will either get her flash or kill her. This setup will give you a large advantage in lane, she will likely be passive after this and if she is chunked enough don’t be afraid to dive her). After level 3 it is a bit harder if she lands her E on you but it is generally a slow skillshot and you should be able to avoid it. As long as you avoid it you will have no problems beating her granted that your passive is stacked, however, I would avoid fighting her once she has cleaver even if you are super ahead of her. The reason for this is even if she misses her E it will be up again as you are fighting her and if you die and give her a shut down its BAD news for you and your team and if you aren’t ahead of her, all inning Illaoi is a good joke.”
“TL;DR - SKILL MATCHUP. GENERATE A LEAD PRE-6. TRY TO NOT GET HIT BY HER E. BRAMBLE VEST WORKS WELL INTO HER. STEELCAPS + BRAMBLE IS GREAT COMBO VS HER. CONQUEROR BEST. LAND YOUR QS. CAREFUL WHEN FIGHTING HER WITH YOUR JUNGLER.
Illaoi is quite a one dimensional matchup. If she lands her E, she is in a position to kill you. If she misses her E, you are in a position to kill her instead. Against Illaoi, you need to be on your feet as there is going to be a lot of dodging involved. You have to dodge her tentacles if possible and you MUST dodge her E. Especially Post-6, as it will lead to her killing you. Keep in mind that without her ultimate, Illaoi cannot kill you at all. Pre-6, she has no kill potential on you whatsoever. Use this to your advantage to generate as big of a lead as possible. Do not miss your Qs. Bramble vest is a good pick up into Illaoi as it allows you to burst her down without her being able to heal back up using her tentacles. I’d recommend a Dblade start if you can force fights early or a Dshield start if you know that she is going to play passive. Conqueror works wonderfully in this lane as you need to put her down quickly. If she landed her E AND used her ultimate, then just RUN. Take as little damage as possible and RUN unless you are 100% positive you will be able to burst her down before she can start DPSing you. Do not underestimate her ability to destroy you at this stage.”
“One of the real counters to you! Do not use Conqueror Build for her. Use Exhaust with Poke build.”
“My tips for this matchup:
#1 Start Doran's Blade and run PTA since you want to be very agressive early levels (1-3),.
#3 Stand behind your minions to make it hard for her to land E's on you, if you're out in the open make sure you're constantly moving and trying to sidestep her E, if she misses E then try to go all in to punish her illaoi relives heavily on hitting her E to do anything.
#4 Build executioners calling usually after first item, before is fine too if it fits your gold better. #5 Try to force her into teamfights, Illaoi thrives at splitpushing but urgot thrives at teamfighting.
#6 If you know she is going to use her ultimate then try to play right outside the range of it so she doesn't get an extra tentacle on you, this can be especially important if your jungler is ganking for you and you know she is going to ultimate, her ultimate range is about the same as your auto attack range so you can simply step back a little bit to bait it out. #7 You can kill her tentacles with your W very quickly, this is especially useful to know once you're level 9 and have your W maxxed, it is important to note that auto attacking the tentacles and using your W will use your passive proc in that direction, which isn't a big deal later on but can be something to keep in mind early game.”
“W her E and use E to dodge as many tentacle hits as you can.
Remember Illaoi is OP in low elo because no one respects her when shes behind.
THE CHAMPION CAN 3v1 EVEN IF SHES SUPER BEHIND ITS HOW HER KIT WORKS.
Play smart, dont let her hit E and you will win. ”
“One of the hardest matchups for Nasus in the game at all stages. Illaoi is an extreme lane bully against Nasus. If she hits a single E and pull your soul, you are out of the lane. There is no counterplay because of that patch where Illaoi’s E got buffed and cannot be removed by damaging her anymore. The only outplay potential is to “JUST DODGE OMEGALUL 4HEAD” but her E is spammable especially when they rush cdr items and max the ability (about every 10 seconds). Post level 6 she is not only ungankable but also impossible to duel. She will destroy you in cs and take your turret plates with no punishment, Nasus will be put too behind to do anything in the early, mid or late game. Ban worthy champ, but is seen rarely. She can also be easily countered by a cc heavy team, so if your team looks decent (that can deal with illaoi), can try to play the matchup. ”
“While playing against Illaoi it's important to dodge her Test of Spirit. After she misses that you are free to trade with her as she misses a good portion of her damage when she can't utilize the spirit from it. If she ults and you know you can't finish her at that moment Q away as she heals for a good amount when she deals damage in her ult. If you are having trouble with her healing buy a Bramble Vest or a Executioner's Calling. ”