Do you have tips about Janna?

You need some caffeine so you don't fall asleep in the middle of the game.

Passive: position yourself wherever you think people are going to want to be headed, but make sure to mind your own safety. Charging in front of your team to help them get to the fight faster probably isn't a great idea. Mostly you'll just wanna stick in the backline to help people kite or disengage. Also it can help when roaming with allies and getting back to lane since you're probably ahead of them thanks to Zephyr.

Q: If you're trying to get some poke off in lane with your tornado, face a certain direction when casting it, but cast it in a different direction. In my experience enemy players expect you to just aim it where they are and let it charge up, and so they'll move out of the way. If you can guess which direction they're likely to try to dodge in before you cast it, you can get some good fake out tornado hits on your lane opponents. Charging Q in a bush or behind walls can catch them off guard. Other than that how long you let it charge depends on the situation. If you're trying to pick a fight, run up insta cast Q from within range and hope for a hit. If you're trying to deter chasers, instantly if they're in melee range and as long as possible of they're not. Sometimes they'll just walk right on top of a charging tornado and you can set it loose immediately.

W: Not too much to say about this other than it can let you hold off on needing to buy boots for a little bit, and it's a good slow. Don't spend the speed buff on a slow if you're trying to run unless someone gets in melee range and your have to get them off. Alternatively I spam this when on the chase so long as they're not a really mobile champ. Use W to ensure a Q hit with an E protected/empowered ally while trading to leave them breathless.

E: Keep a weather eye out for stuff like Jhin's dancing grenade or things like that heading for your adc. So long as you don't think anyone's going to be in real danger I suggest using this to negate as much poke as possible. Keep this up enough and you'll really dissuade the enemy lane from even wanting to try to trade since your adc will just always be at full health. Windshield your turret, not your adc, if you're trying to quickly clear a wave that's pushed up. Use it on the person with the highest attack speed when busting structures to get the highest value out of the bonus AD, same goes for drake and baron unless someone's low. Remember you can buff a turret's damage with this.

R: This is a tricky one to always know the best way and time to use. Just always make sure you use it right beside whoever's in the most danger and blow your cooldowns before you use it. It's a channel so you'll have to cancel it to throw out an emergency shield if the heal isn't enough to save them from whatever, that is unless you follow my advice and do stuff like that before hand. This actually applies a kind of micro stun if you push someone into a wall with it, so I guess you can use it on a group of enemies near a wall to CC them without disengaging. I highly suggest saving this until the knock back can be of use. Ulting just to heal is a waste. Combo with with an Ardent Censor to buff your whole team and turn the teamfight around even harder, or help them quickly finish the game.

Those are the obscure facets of playing Janna I'm aware of, Enjoy.

Janna forces you to play passively and rely on your lane mate to do the majority of the work. You'll want to save your Q for Disengaging, as using it in offense is an invitation for your opponents to engage you freely. Positioning with Janna is extremely important due to her passive granting movement speed to your laner when they are moving toward you. Her W also serves a similar function when not on cooldown, so you really only want to use W when you're trying to secure a kill, as it acts like a slow the moment she launches the bird.

Her ultimate has several uses. It can break a team-fight wide open by launching enemies around her. Healing is also a good use for it, but with Redemption, her ultimate is now used to split groups into smaller bits.

I would recommend running Janna with a friend, or someone you know. She is a larger risk in random Solo Queue, as your laner may not work well with what Janna does well.

just stay with your ADC and start facerolling as soon as someone comes in Range.

A lot of people will tell you to play passively and they are both right and wrong. Most of the time you play passively but when you have more than 60% mana you can shield your self and trade 1-2 autos with the enemy adc it forces them to hit your shield doing no damage or just taking your attack damage buffed auto attacks. Try to do this more.

Yes.

Just one. HUAEHUAEUHEUHEUHEUAHEUAEHAUEHUAHEHAUE.

I reccomend going cast/tank hybrid.

Also, tilt the enemies with your q.

Janna for me is not fun to play unless the enemy team has a heavy dive comp. Otherwise your just pumping out shields on your adc as they harass while building cdr items with actives or heal abilities on shield.

When running from someone, use your q in the direction that you're gonna run in instead of where they currently are to give it time to build up before it hits them.