Picking up goo chunks is very important to staying alive.
When Cell Division is ready, try to die in a position that makes it difficult for the enemy team to kill your bloblets.
Charging Elastic Slingshot from the fog of war will give opponents less time to react.
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.
Janna's at her strongest when buffing another ally. If you can harass her ally, it will weaken her ability to fight you.
The stat comparisons shown here highlight some valuable Zac vs. Janna counter stats that can help you understand the differences between the pair. As an example, Zac’s KDA ratio ([kills + assists] / deaths) of NaN is more than Janna’s ratio of NaN, indicating that Zac may be more central to his team's team fighting effectiveness than Janna. This observation is largely fueled by the difference in kills.
Zac normally has a much larger longest kill spree than his opponent does. On average, he takes more damage than Janna. This commonly reflects different amounts of tankyness, but it can also illustrate that the champion with higher health has less mobility and thus is not able to kite away from further damage when engaged or poked.
Both League of Legends champs are great. Both champs have their pros and cons. In League's current meta, Zac usually loses when trying to fight Janna, with a 46.9% win rate. Therefore, Zac makes a bad counter to Janna.
While Zac does have a lower winrate compared to Janna, when on opposite teams, Zac also has a greater level of difficulty that makes him a more difficult character to pick up and master. You should expect to face a difficult match when picking Zac into Jannaas his relative depth means you may not be able to unleash his full potential without a significant amount of practice beforehand.
Additionally, Zac has some amount of utility and CC, a similar amount to Janna. This often makes her just as valuable during team fights, especially when fighting champions with a ton of burst damage.
While there isn't a single best champion for every situation in League of Legends, in Zac vs Janna matchups, Janna is the better champ with a much lower win rate, more champion depth, and a similar amount of utility to help out your allied champions during team fights.
Zac is a bad counter to Janna. Focus your strategy on maximizing your gold and cs and taking out objectives. If you are able to do that, you should be able to stand on your own as Zac against Janna.
If you would like to learn all of the intricacies of Zac in order to counter Janna during both the early game and mid / late game phases of League of Legends, you should continue reading to gather a few extra tricks and insights into this matchup. If you pay attention to the build and stats shown above, you will grow your win rate significantly and be that much closer to League of Legends pro players.
Zac most often gets more CS compared to Janna. Champs who on average don't earn many minion kills often don't need much CS to be valuable teammates, such as sup champs. These kinds of champions are able to scale well off of their abilities and first items alone. Yet, champions with a lot of CS, such as hyper-carries, typically have to have many items to be effective. In either case, try to surpass the values displayed here to do well.
The top items to focus on in your Zac versus Janna build consist of Sunfire Aegis, Spirit Visage, and Demonic Embrace. When Zac combined at least these three pieces in his build, he did significantly better against Janna than with most other typical builds. In fact, Zac boasted an average winrate of 46.9% when playing against Janna with these items in his kit.
To have the highest chance of crushing Janna as Zac, you should use the Aftershock, Font of Life, Conditioning, Revitalize, Magical Footwear, and Cosmic Insight runes from the Resolve and Inspiration rune sets. Out of all the runes players picked for Zac vs Janna counterpicks, this sequence of runes resulted in the greatest win rate. Notably, these runes averaged a 46.9% win rate overall.
By default, tips, stats, and builds on how to beat Janna as Zac are shown for all skill levels combined. If you want to narrow the stats and builds to a distinct player tier, you should use the selection menu located earlier on the page.