Maokai's passive makes him extremely durable against focus fire from spells - so long as he can still basic attack something.
Try looking for flanks or other situations where Nature's Grasp is unavoidable or takes enemies by surprise.
Saplings can be tossed into brush for empowered effect - but don't stack well.
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 stat comparisons shown on this page show some valuable Maokai versus Janna matchup statistics that may help you appreciate the differences and similarities between the pair. Maokai’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Janna’s ratio of NaN, indicating that Maokai may be more central to his team's team fighting effectiveness than Janna..
Maokai typically has a similar longest killing spree as his enemy does. On average, he receives more damage than Janna. This commonly reflects differing health capacities, yet it can also show that the one champion has less mobility and thus is unable to kite away from additional harm when poked or engaged.
Both League of Legends champs are great champions. Both have their pros and cons. In the game's current meta, Maokai usually wins when facing off against Janna, with a 53.2% win rate. Thus, Maokai makes a great counter for Janna.
While Maokai does have a higher win rate compared to Janna, when on opposite teams, Maokai also has a much lower difficulty level that makes him a less time consuming character to learn and master. You don't need to be too worried when picking Maokai into Janna.
Moreover, Maokai has a great deal of utility and CC, a similar amount to Janna. This makes her just as valuable during teamfights, especially when facing champions with a lot of burst damage.
While there isn't a single best champion for every situation in League of Legends, in Maokai vs Janna matchups, Maokai is the better champion with a noticably higher win rate, less champion complexity, and a similar amount of utility to help out your team members during teamfights.
Maokai is a great counter to Janna. You will do well by focussing your play on increasing your gold and cs and clearing objectives. If you are able to do that, you should do very well as Maokai against Janna.
To truly master Maokai 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 lessons on this matchup. If you listen to the build and stats shown above, you should grow your win rate by a lot and be that much closer to League of Legends pro players.
Maokai often racks up more CS compared to Janna. Champions who typically don't earn much CS usualy don't have to have much CS to be effective, such as supports. They are able to scale properly off of their skills, stats, and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, usually need several high cost items to be effective. In either case, try to surpass the numbers displayed here to do well.
The best items to prioritize in your Maokai versus Janna build include Trailblazer, Solstice Sleigh, and Hollow Radiance. When Maokai bought at least these three pieces in his build, he did much better vs Janna than with most other typical counter builds. In fact, Maokai boasted an average winrate of 53.2% when playing against Janna with these items in his kit.
To have the greatest chance of defeating Janna as Maokai, Maokai players should use the Aftershock, Font of Life, Bone Plating, Unflinching, Biscuit Delivery, and Cosmic Insight runes from the Resolve and Inspiration rune sets. Of all the runes players picked for Maokai vs Janna counter picks, this sequence of runes resulted in the highest win rate. In fact, these runes provided a 53.2% win rate overall.
By default, tips, stats, and builds on how to beat Janna as Maokai are given for all skill levels, merged. If you want to scope the statistics and builds to an individual rank, you should use the selection menu located earlier on the page.