The Janna build for Support is Shurelya's Battlesong and Summon Aery. This LoL Janna guide for Support at Platinum+ on 13.24 includes runes, items, skill order, and counters.
Enemy Champion
Win Rate
Senna
7,250 games
Xerath
2,662 games
Vel'Koz
1,202 games
Zyra
3,477 games
Neeko
1,076 games
Brand
1,877 games
Lux
4,877 games
Zilean
1,624 games
Pyke
3,756 games
Swain
1,550 games
Ashe
2,730 games
Morgana
2,931 games
Pantheon
738 games
Karma
3,103 games
Seraphine
1,836 games
Yuumi
2,181 games
Bard
3,504 games
Sona
1,958 games
Taric
755 games
Thresh
7,324 games
Nami
4,120 games
Blitzcrank
3,974 games
Lulu
4,347 games
Soraka
3,377 games
Nautilus
5,078 games
Maokai
1,040 games
Renata Glasc
3,220 games
Milio
3,194 games
Rakan
6,212 games
Braum
1,232 games
Leona
2,684 games
Shaco
806 games
Rell
2,636 games
Alistar
2,494 games