Hi everyone thanks for reading my janna support build

First of all my core items for janna are soulshroud boots of swiftness and morellos evil tome . Let me explain why i suggest these items soul shroud give you a 10% cooldown reduction aura as well as a 12 mana per 5 seconds aura making you perfect to team up with mages and fighters that are ad but use mana like master yi. Also it increases you hp with 520 points giving you some survivability. The boots of swiftness combined with the passive from her second skill make her extremly fast letting her reach her allies that are in trouble before they die. I take morello's evil tome as my last core item for the cd it gives the mana regen and of course the ability power.
as otehr items i take philosofers stone at the biginning for the passive as well as the health and mana regen and for the last to bag slots I take soulstealer because i get tons of assists and a deathcap otehr ap giving items are a good idea but these two give me the highest ap greatly increasing my shield heal and dmg spells

Let's talk about the runes I chose these runes because 1)they increase the dmg janna is dealing with her spells making her helpfull in the bottom lane not only as a support champ but also as a dmg dealer ( well it is not insane dmg but it will help your ally kill the enemies faster) 2) The seals of clarity make sure your mana regen increases as you level upand combined with the items make you mana impossible to get really low 3) The glyphs of celerity combined with the core items and masteries give you max cooldown reduction

-During teamfight try hiding in bushes so the enemies won't target you and hit them with howling gale

-while retreating from battles you can help your allies by using Monsoon to knock back enemies and heal your allies.

-Try not going 1 on 1

-If you are the bait try taking advantage of your high speed by running back and casting Howling Gale

-Your shield increases the damage of the targeted ally try keeping that in mind when you are two people on a lane

PROS
-Fast movement speed
-Useful bait
-High damage
-Strong shield
CONS
-Not for 1 on 1 battle
-Easy target

as summoners spells i use flash and clairvoyonase

I hope you find this guide useful keep in mind that this is the first build i make for other people to see and please comment to let me know what I should fix in the way I wrote this build