Click to open network menu
Join or Log In
Mobafire logo

Join the leading League of Legends community. Create and share Champion Guides and Builds.

Create an MFN Account


Not Updated For Current Season

This guide has not yet been updated for the current season. Please keep this in mind while reading. You can see the most recently updated guides on the browse guides page

Janna Build Guide by Cazziel



Updated on April 2, 2021
Vote Vote
League of Legends Build Guide Author Cazziel Build Guide By Cazziel 33 1 78,625 Views 2 Comments
33 1 78,625 Views 2 Comments League of Legends Build Guide Author Cazziel Janna Build Guide By Cazziel Updated on April 2, 2021
Did this guide help you? If so please give them a vote or leave a comment. You can even win prizes by doing so!

You must be logged in to comment. Please login or register.

I liked this Guide
I didn't like this Guide
Commenting is required to vote!
Would you like to add a comment to your vote?

Your votes and comments encourage our guide authors to continue
creating helpful guides for the League of Legends community.

Runes: My usual runes

1 2
Summon Aery
Nimbus Cloak

Font of Life

+8 ability haste
+9 Adaptive (5.4 AD or 9 AP)
+15-140 HP (lvls 1-18)


1 2 3
Aggressive spells
LoL Summoner Spell: Flash


LoL Summoner Spell: Ignite


Threats & Synergies

Threats Synergies
Extreme Major Even Minor Tiny
Show All
None Low Ok Strong Ideal
Extreme Threats
Ideal Synergies
Ideal Strong Ok Low None


Hi everyone, I'm Cazziel, and this is my Janna Support guide. Janna is my one of my favorite champions, and she's super fun and useful, and very easy to learn which makes her a great support for beginners. I wrote this in S8 but I'll keep it updated as much as possible! Please let me know if you spot any mistakes.

Without further ado, I present to you, my Janna support guide. Thank you for taking the time to read this guide.

Useful words

(Use the link above for any abbreviations you don't understand)
Back to Top

Pros / Cons


+ Ranged Champion
+ Good Knock-up with Howling Gale
+ Strong shield
+ Amazing slow with Zephyr
+ Good disengage and healing with Monsoon

Janna has a great and useful kit with contribute with both with both damage, healing and shielding. She's very easy to learn, and always a safe pick for me

- Squishy
- High cooldowns early game
- Q is a tricky skillshot
- Bad against tanks/CC heavy champions
- High use of mana

Janna is a very squishy champion, especially early game so she's an easy target for assasins. Her cooldowns are long, and she uses a lot of mana earlygame especially. Make sure to always have an eye on the minimap and WARD WARD WARD.
Back to Top


  • Increased damage and shielding - useful rune throughout the entire game in my opinion.
  • Shortly after casting your Ultimate, gain a burst of movement speed - this will be very useful for escaping and avoiding bad fights. Can be replaced with Manaflow Band
  • Gain 1.5% extra MS. Gain extra AP or AD (Adaptive) based on your bonus MS. This synergizes perfectly with Janna's passive!
  • Great for early game trades especially, can be substituted with Waterwalking if you want that extra ms

Second tree
  • This is a perfect rune for Janna because of her CC-heavy kit
  • Even bigger shields!
Back to Top

Summoner Spells

Flash: Very important - use it to dodge hard CC/escape from an angry mob chasing you

Ignite: For the kill secure ;)

Exhaust: Great for locking down a target/escaping/making sure the enemy Zed (or whoever their carry is) wont explode the entire team.

Heal: An extra heal can, in some situations, be very useful, expecially against high damaga champions like Brand and Lux
Back to Top


  • Tailwind: Janna passively gains 8% bonus movement speed and grants the same amount to nearby allied champions moving towards her.
    Janna's basic attacks and Zephyr deal bonus on-hit magic damage equal to 25% / 35% of her bonus movement speed.
  • Howling Gale (Q): Janna summons a whirlwind at her current location which charges up over 3 seconds. Its range, speed, damage, and knockup duration increase for each second it is left charging.
    At the end of the duration, or upon reactivation, the whirlwind launches itself for 1.5 seconds in the target direction, dealing magic damage to all enemies it passes through and knocks them up for 0.5 − 1.25 (based on seconds charged) seconds.
  • Zephyr (W): While Zephyr is not on cooldown, Janna is aided by an air elemental who ghosts her and grants her bonus movement speed.
    PASSIVE: While Zephyr is not on cooldown, Janna gains movement Speed and can move through units.
    ACTIVE: Janna commands her air elemental to attack the target enemy, dealing them magic damage and slows them for 2 seconds
  • Eye of the Storm (E): Janna shields the target allied champion or herself for 5 seconds, decaying over the duration after 0.75 seconds.
    While the shield holds, her target gains bonus attack damage.
    Eye of the Storm can be used on turrets, causing Janna to be credited for any kills it earns while the shield holds.
  • Monsoon (R): Janna surrounds herself in a magical storm, throwing enemies back. After the storm has settled, soothing winds heal nearby allies while the ability is active.
    As she summons forth the might of the wind to knock surrounding enemies back she also restores health to nearby allies each second for 3 seconds, or while the ability is active.

Here's a video by C9 Hai that explains Janna:
Back to Top


In this section I'll go over some of the main items I like to build on Janna

First item: Spellthief's Edge I almost always go for Spellthief's Edge - the reason for this is because it gives you both damage and extra gold in lane. However, in a lane where you're not able to poke as much, Relic Shield is a good alternative.

On your first back, you should go for an additional health potion (if needed) and control ward(s). On my first back I also like to buy Boots and if I have enough gold I also like to get a mana item like Forbidden Idol because of her high mana costs.

Whenever you have your support item stacked, make sure to upgrade your basic ward to an Oracle Lens !

The first item for Janna should be her mythic item. A lot of different mythics work on her, so you should choose depending on your game situation.
One of the options is Imperial Mandate - This item is really good on her, because Janna is very CC heavy with her slow and knockup. And since it’s a mythic item, it will also give your other items bonus AP! I like to build Imperial Mandate if my ADC is super strong already, because the marks that imperial mandate leaves on enemies gives them even more burst!

Another mythic you can build is Moonstone Renewer- this item is very useful if the enemy team is pokeable and you're in long fights. This is because whenever you're affecting champions with attacks or abilities in combat ⁠(this includes crowd control and shields) you heal the lowest health ally. The cooldown on this is SUPER low and every second in combat increases the effectiveness of the heal, up to 50%.

The last mythic I'll mention is Everfrost - this works especially well if you're playing "Super Slow Janna". Everfrost allows you to shoot a cone of freezing cold ice and the middle of the cone will cause a root! This is a great aggressive item which will help you snatch kills for your adc.

Your next item you should pick up are upgraded boots! Here I either go for:
Ionian Boots of Lucidity - extra ability haste
Mobility Boots - extra speed! pairs well with her passive

The next item you should be aiming to buy is Ardent Censer. It gives you both ability haste and AP. Moreover it also has a very good passive that increase your heals and shields! It's a healer/shielder must-have.

Another must have is Staff of Flowing Water - This item benefits you a whole lot, as it has a ton of AP, additional healing power and it also gives both you and your allies additional movement speed when they're affected - this synergises very well with Janna's passive, and it's gonna be useful for chasing down enemies in fights. (as well as running away from them in a bad fight!)

For even more healing (and shielding power) I like to pick up Redemption as this item too enhances your healing as well as your shielding power through you. In addition to those stats, it also provides you with ability haste, extra health and mana regen. The active on this item will allow you to heal your allies from afar, even when you're dead!

For situational items, you can experiment and try out what feels right for different situations. I've listed a couple at the top item section that I like to play around with :)
Back to Top


In laning Janna is a reliable support. Make sure you always harrass the enemy adc when he tries to farm, to deny him as much cs as possible and use your shield to block most incoming damage from trades. When your jungler shows up, make sure you always have Zephyr up so you can slow the enemy! If its a clutch situation, your Q is also a great tool to get rid of unwanted enemies. If it's truly necessary, Monsoon is also great for knocking back enemies and escaping, and it synergizes well with Yasuo 's Last Breath

Also, if your adc dies and your tower is getting pushed in, remember that Eye Of The Storm can be used for towers!

Once you have your Shard of True Ice fully stacked, make sure to buy a Oracle Lens so you can remove enemy wards.
Also, make sure to have atleast one Control Ward in your inventory all the time, until you get full build - trust me, these are important.

If you are sure your adc can farm 1v2, then try to go with your jungler and get some free kills or objectives. This will benefit your team a lot and you can get some good wards off while roaming the jungle.

And warding is important! Here's the best places to put wards in laning phase:
Back to Top


In teamfights Janna should stay in the backline, preferably close to the adc, and use her Q Howling Gale to CC enemy champions, focusing the high damage carries. She should shield either the assasin or the ADC of the team (usually the squishiest).

If you see kill-potential, the best combo you can do is Zephyr -> Howling Gale -> Ignite to ensure maximum damage.

In the beginning of a fight, or to chase down the last survivor, use Zephyr on a squishy target to get a nice slow onto the enemy, to make it easier for your team to hunt them down! Also, if you have Mikael's Blessing make sure to keep an extra eye out for CC spells, so you're can cleanse your teammates and possibly save them!
Some spells this item counters includes: Rammus E, Morgana Q, Zoe E (Removing the "Drowsy" effect prevents the target from falling asleep), Ashe ultimate, and Twisted Fate W.
Note this item doesn’t work well against champions who are suppressed by abilities like Malzahar Ultimate, Skarner Ultimate or Warwick Ultimate - here it's better for your teammates to have QSS (Quicksilver Sash) and for you to shield them to block out some damage. If you have up, you can also use that to save them in a clutch!

If you have exhaust, focus the assasins and the enemy adc and exhaust them to reduce their damage and maybe even secure a kill for your team!

If you die in a teamfight, you can still help by using if its up - also remember keep an extra eye on the map, incase any dangers show up!

Using Oracle Lens to reveal invisible or hidden enemies, traps and wards is also very important and it might even save you and your teammates from a flank or surprise attack.
Back to Top


Janna is an extremely fun champion to play, and has a lot of utility. She can be played by almost anyone, and I recommend her to anyone who wants to try out supporting. Warning! It's hard not to get addicted!

Also please upvote if you liked the guide, and feel free to recommend it to your friends.
I'll be making a more in-depth guide soon, and if I made any mistakes, then please bare with me, this is my second guide ever.

Hope you have fun and gain elo with Janna support !

- Cazziel
Download the Porofessor App for Windows
League of Legends Build Guide Author Cazziel
Cazziel Janna Guide
Vote Vote

League of Legends Champions:

Teamfight Tactics Guide