Try to knock enemies back into your towers with Explosive Cask.
Try to combo Body Slam with Explosive Cask to set up kills for your team.
The damage reduction from Drunken Rage is applied when you start drinking, try to use it when you see damage coming your way.
Stay behind minions to make Charm difficult to land, this will reduce Ahri's damage potential significantly.
Ahri's survivability is dramatically reduced when her Ultimate, Spirit Rush, is down.
The stats shown on this page show several vital Gragas versus Ahri counter stats that can help us explain the distinctions between this pair of champions. As an example, Gragas’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Ahri’s KDA ratio of NaN, showing that Gragas may be more central to his team's team fighting capability than Ahri..
Gragas usually has a similar longest kill spree as his matchup does. Typically, he takes more damage than Ahri. This typically indicates differing health capacities, but it can also hint that the one champ has less mobility and thus is unable to escape further harm when poked or engaged.
Both League of Legends champions are great champions. Both champs have their strengths, weaknesses, and counters. In the game's current meta, Gragas usually loses when trying to fight Ahri, with a 47.7% win rate. Thus, Gragas makes a poor counter to Ahri.
While Gragas does have a lower winrate compared to Ahri, when they face off with one another, Gragas also has a greater learning curve that makes him a more complex champion to learn and master. You should expect to face a difficult match when picking Gragas into Ahri.
Additionally, Gragas also has a good amount of utility and CC, a similar amount to Ahri. This often makes her just as valuable during team fights, especially when trying to counter champions with a ton of burst damage.
While there is not a single best champion overall in League of Legends, in Gragas vs Ahri matchups, Ahri is the better champion with a lower win rate, similar champion depth, and a similar amount of utility to help out your allies during late stage team fights.
Gragas is a terribly counter for Ahri. You will do well by focussing your gameplay on keeping up your gold and cs and clearing objectives. If you can do that, you should do very well as Gragas against Ahri.
To learn all of the intricacies of Gragas in order to counter Ahri during both the early game and mid / late game phases of League of Legends, you should continue reading to pick up a few extra lessons on this matchup. If you listen to the build and tips presented here, you should increase your win rate by a lot and be closer to League of Legends pro players.
Gragas typically picks up less CS compared to Ahri. Champs who typically don't get many minion kills often don't require much CS to be valuable teammates, such as support champions. These kinds of champions are capable of scaling properly off of their skills, stats, and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, typically need many items to be effective. In either situation, try to surpass the numbers reported here to do well.
The best items to use in your Gragas versus Ahri build include Rabadon's Deathcap, Lich Bane, and Stormsurge. When Gragas used at least these three items in his build, he did significantly better versus Ahri than with most other common item sets. In fact, Gragas boasted an average winrate of 47.7% battling Ahri with this build.
To have the best chance of annihilating Ahri as Gragas, you should use the Dark Harvest, Sudden Impact, Eyeball Collection, Treasure Hunter, Transcendence, and Waterwalking runes from the Domination and Sorcery rune sets. Of all the rune builds players picked for Gragas vs Ahri fights, this mixture of runes yielded the greatest win rate. Notably, these runes gave a 47.7% win rate overall.
By default, tips, statistics, and builds on how to beat Ahri as Gragas are presented for every ranked division. If you want to scope the stats and builds to an individual skill level, you can use the selection menu located earlier in the counter matchup guide.