Just Won The Gauntlet - Here is how
After 53 losses and a bunch of bad matchmaking, me and a few guys finally did it.
It won't be easy to win, but here is how to do it.
First, create your roster of good player slowly but surely. You join a blind and keep asking good player to duo with you (if you are decent, they will) Eventually, you get a good group and you can carry 1 newbie on your team. You need Anivia, she is the absolute best champ in this mode and proper wall management and ult will screw the AI harder than a nuclear dildo would your mom.
Second, kogmaw, ap. He deals insane dmg, good at solo clearing bot, and his good range can keep him alive all game long. The passive doesnt work so don't bother.
Third, a trolly, cheesing type of champ like karthus or singed. you can bait the ai into chasing singed, or suicide karthus 24/7 no wave clear, slow everything forever etc.
Afterward, it's just having two other adc constantly putting out damage. jinx is amazing at that. cait is a good pick as well. DONT build crit on them, Focus BotRK and Bloodrazor. Then a good amount of attack speed and ad.
When you the game start, make sure to have anivia mid with blue, while the sidelane survive long enough for anivia to get ult and push out the enemie bot to their turret. When lanes fall, rotate right away to mid and then to the last remaining lane. Honestly, if the bots get an inhib before teemo spawn, it's probably gonna be a loss.
When teemo spawns, make sure to keep an eyes on side lane, if it's malz, you need to have anivia go and clear all his spawns and wall the entire entrance to base. keep your adc mid and focus the bots before switching to teemo, with good damage, good luck and good plays, you can beat teemo without him reaching your nexus towers.
TL;DR
Anivia mid, Ap kog, 2 adc and 1 other good pick. waveclear and remember, this is not the teemoing where anything can win easily. I played the teemoing once after winning the gauntlet and went 39 kill with 2 penta 2 quadra and too many multikill.