Valkyrie can be used defensively as well, so try using it for a quick escape.
Phosphorus Bomb can be used to reveal enemy units that might be hiding in a nearby patch of brush.
Corki can continue to attack while using Gatling Gun. Maximizing Gatling Gun is key to mastering Corki.
Janna's at her strongest when buffing another ally. If you can harass her ally, it will weaken her ability to fight you.
Save an interrupt ability for when Janna uses her ultimate.
Listen for the charge up sound on Howling Gale in case Janna is trying to hit you with it from off screen or from brush.
The stats shown on this page highlight several strategic Corki vs. Janna counter stats that may help us understand the distinctions between these two champs. For instance, Corki’s KDA ratio ([kills + assists] / deaths) of NaN is more than Janna’s KDA ratio of NaN, demonstrating that Corki may be more central to his team's team fighting effectiveness than Janna. This observation is in large part caused by the difference in kills.
Corki often has a much larger longest killing spree than his enemy does. On average, he receives more damage than Janna. This typically indicates different amounts of tankyness, but it can also indicate that the one champion has less mobility and thus is unable to escape additional damage when engaged or poked.
Both League of Legends champs are great champions. Both champs have their strengths, weaknesses, and counters. In the game's current meta, Corki usually loses when playing against Janna, with a 47.5% win rate. Therefore, Corki makes a poor counter to Janna.
While Corki does have a lower winrate compared to Janna, when facing one another, Corki also has a lower level of difficulty that makes him a less challenging champion to learn and master. You should expect to face a difficult match when picking Corki into Janna.
Additionally, Corki has almost no amount of utility and CC, a similar amount to Janna. This often makes her just as valuable during teamfights, especially when trying to counter champions with a lot of burst damage.
While there is not one best champion overall in League of Legends, in Corki vs Janna matchups, Janna is the better champ with a lower win rate, less champion complexity, and a similar amount of utility to help out your teammates during team fights.
Corki is a terribly counter to Janna. Focus your play on increasing your CS and taking out objectives. If you are able to do that, you should be able to stand on your own as Corki against Janna.
To learn all of the intricacies of Corki to counter Janna during both the laning and mid / late game phases of League of Legends, you should continue reading to learn a few extra tricks and insights into this matchup. If you pay attention to the build and tips presented here, you should increase your win rate significantly and be that much closer to League of Legends pro players.
Corki usually accumulates much more CS compared to Janna. Champions who typically don't get much CS often don't have to have much CS to be effective, such as sup champs. These kinds of champions are capable of scaling well off of their abilities and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, typically require a lot of items to be effective. In either case, try to exceed the values reported here to do well.
The top items to use in your Corki versus Janna build include Malignance, Spear of Shojin, and Eclipse. When Corki used at least these three pieces in his build, he did a lot better vs Janna than with many other typical counter builds. In fact, Corki boasted an average win rate of 47.5% when countering Janna with these items in his kit.
To have the greatest chance of defeating Janna as Corki, Corki players should use the First Strike, Magical Footwear, Biscuit Delivery, Cosmic Insight, Taste of Blood, and Ultimate Hunter runes from the Inspiration and Domination rune sets. Out of all the rune combinations we have analyed for Corki vs Janna battles, this combo of runes yielded the highest win rate. Moreover, these runes provided a 47.5% win rate overall.
By default, tips, stats, and builds on how to beat Janna as Corki are presented for all ranked divisions. If you would like to filter the statistics and builds to a particular skill level, you can use the selection menu located earlier in the counter matchup guide.