Ahri

Ahri most likely wins. Although you are a magic absorbing colossus, Ahri is way more mobile than you, She'll play super safe, and defending your carries will be hard, as she will most likely always be outside your taunt range, and can throw spells from afar. The only way to win here is to catch her with an E, if you have a teammate and land an E, you can cc her long enough to kill. You cannot win a 1v1, She'll always escape, so roam as much as possible, you may not lose lane, but you won't win it either, so win someone elses lane

Anivia

This lane is certainly winnable, as long as anivia does not have good reaction time, you should be able to win, be wary though, as Anivia wall will inturrupt your E, also she can double tap Q and get a stun on you before you land your punch, galio's E is not uninterruptable, so if you can catch her off guard, you are sure to win, she has 0 mobility. Late game if you get MR, you should shred her as your Q does percent health, and anivia builds ROA.

Annie

Annie is an easy lane, build MR though. Annie stun is not reliable enough for her to cancel your E, only go in when her stun is down, if you do this every time, you win the trade, even if she gets her stun after you land your E, aftershock wins you the trade.

Aurelion Sol

Aurelion Soul is a decent match up, However, if you E, you have to commit. Getting in melee range with your E makes it so a-sol is completely useless when fighting you, however, if you miss your E/disengage, he will retaliate with a never ending star spree kite. Land your E

Azir

Azir is a pretty hard match up, but not un-winable, his soldiers HURT a lot, but when you get your W, it should ease the pain, the passive shield absorbs some of the soldier damage. TAUNT RIGHT AWAY, if you give him any chance to do anything while hes on the ground, he will surely soldier shuffle out of range. This wont be easy, but you can still win

Brand

Personally, I cannot fight brands, i hate them so much, they have such annoying range and spells. Galio does not perform well against brand, Brand is just overall broken, you ulting near a brand just gives him another champion to bounce too.

Cassiopeia

I personally have never fought this lane, but I feel Cassiopeia is a big counter to galio, her Miasma counters your E and R, the big boy engage. Her poison also shreds through your passive shield, and while your taunt is going, you're still dying to poison so she's sort of uneffected.

Cho'Gath

Cho'gath is an easy-ish match up. As long as you engage first, you win. If he lands a Q on you, or silence, you cant do much, however, you effectively win trades, E, W, keep him in your Q as long as possible, it shreds HP (%hp scaling) which is what cho builds/gets from his passive. However, if you do not constantly poke or go in, his passive could undo everything you've done, and then you're back to square one. Late game, your items will SHRED his HP, easily.

Corki

Corki qualfies as a mid laner to MOBA fire, You should win this, Corki is a squishy Marksmen, E W Q combo, rinse and repeat, you can walk away safely knowing aftershock makes marksmen cry. Although he might play super safe, so be wary, missing galio E spells Doom

Diana

Diana qualfies as a mid laner too! Pre 6, shes just another minion, push her around, a REALLY good diana can W you before you land your E, but taunt, and you win trade (Aftershock baby). Late game, be wary, when she ults on your carry, its important to be their to land that instant taunt into free knock up. W YOUR CARRY IMMEDIATLY WHEN SHE ULTS, DONT GIVE HER TIME, THEN E WHILE SHES TAUNTED, DONT GIVE HER TIME

Ekko

Ekko can dodge your E with his E, More importantly, in teamfights, ekko can W, where you're landing, E out of range, auto back into range, and activate his W, so hes bad news.

Fizz

Fizz is an easy match up, you have to change your play-style though, W first, if you don't land that (he dodges with E) then you have a free knock up from E. You're also super tanky, so you'll never be bursted by this fish

Galio

**PLAY DRAFT YOU SILLY SUMMONER**
Whoever engages first wins, Aftershock blocks the others damage

Karthus

Literally a FREE lane, his W does not stop your E at all, and you can always W for damage reduction blocking his Ult, which is cheese.

Kassadin

Kassadin is an annoying lane, he cannot beat you, but he can annoy you. Pre-6 easiest lane ever, however after 6, the guy just jumps around like a madman, catching him will be task, not impossible, just aggrovating

Katarina

Easy Peasy, Many melee match ups are easy, but this one is a piece of cake, Katarina doesn't stand a chance against you. What is she gonna do? Engage with E? Nice job shunpo-ing right into an easy taunt. Careful for your carry tho, they aren't as tanky as you. But Katarinas ult is going to be easy to cancel, so dont worry too much.

LeBlanc

Galio not smart, galio only crush, galio cant tell which real which not. :(

(Personally, i feel as if Leblanc is an annoying match up. I can't fight her, but this lane isnt impossible, i've beaten her before, the trick is finding the right clone, i always get the wrong one :c)

Lissandra

Lissandra is not a hard match up. Shes going to spam that Q and poke the **** out of you. However, once you land that E, you win the trade. Lissandra will try to use her claw move to dash out, but taunt her while her claw is moving, that way, it keeps her cc'd long enough for her to not move, and if she somehow does teleport (ex. re-cast early) the taunt sometimes goes through, and she walks back to you.

Lux

Snare does not stop your E, feel free to soar through the air and JUSTICE PUNCH THIS DEMACIAN BACK TO HER HOME. Also you can W to damage reduce her ulti if she does snare you before you E. Build MR for best results

Malzahar

What an annoyance. Proc spell shield with Q, dodge his Q. Beat him down, he isnt mobile at all, however watch out for his ult, it will shred you early, but once you get MR, this man is dead.

Orianna

Orianna is pretty strong. The ultimate weapon for an E-girl. Shes going to spam that ball around 24/7, be careful. However since shes kinda not mobile, you can do your combo and win, just be careful, her passive makes her autos hurt, so that taunt is only for keeping her in place.

Ryze

Again, that point and click root wont stop your E while you're in the air, however he can snare before you E. Thats fine though, build MR and Merc treds, and you'll be outta that snare faster than you can say demacia, then Ryze is in for a good 'ol fashion demacian throwdown

Swain

Swain is pretty strong, you may shred him with your Q, but he just heals it all back, your best bet is late game where you have morelloes, however early games a b*tch, this guy is hella annoying, and hella tanky, you dont win trades, but if you play safe, he wont win either.

Syndra

If you can dodge Syndra stun, you should be fine, again, no mobility. This all depends on if Syndra saves her scatter the weak to push you away, instead of stunning. But its fine, you can always W her ult for that sweet sweet damage reduction (BUILD MR)

Talon

Easy match up, an melee character who is designed to go into melee range to fight? Oh it almost sounds too easy. Just remember, this annoying guy can parkour his way out of any fight, so he cant kill you, but you can definitely kill him. All he can do is run.

Twisted Fate

This is the one time you change anything of this build, TAKE CLEANSE INSTEAD OF IGNI, this guy should be no problem if you have cleanse. Your ult is half his ulti's range. If you see him walk out of lane, HES GOING TO ULT, FOLLOW HIM, if you cannot find him/cancel him before he ults away, find what lane he went to/person he teleported to, ult that person.

Veigar

Meh. Not the hardest match up, not the easiest, his cage interrupts your E, and his ult does percent health damage, which is bad, but if you engage on him first, you win, just don't miss your E. Again you can W for the damage reduction on his R, but you have to have good reaction time.

Vel'Koz

No mobility champion, two things you have to watch out for. 1) his true damage ulti/passive, 2) if hes 200 iq, he can anticipate your E, and he can E in the middle of your E and knock you up.

Viktor

Vladimir

Sorry, i always ban, so I don't know this match up.

Xerath

Xerath's stun is pretty strong, it will cancel your justice punch, if Xerath gets ahead, he can clear your wave and poke you down along with his minions. Don't let him get ahead.

Yasuo

Melee, AND he dashes into you? sounds to me like someone is taunting you, taunt him back, and beat this wanna be samurai.

Zed

Rush Seekers armguard, and ninja tabi's. Zed isn't too hard, when he ult's you, just charge your W, and as soon as zed exits, TAUNT HIM. GG

Zoe

Dodge her sleep, easy win baby. Rinse and repeat combo.