The Yuumi build for Support is Shurelya's Battlesong and Summon Aery. This LoL Yuumi guide for Support at Platinum+ on 13.23 includes runes, items, skill order, and counters.
Enemy Champion
Win Rate
Senna
4,996 games
Pyke
2,313 games
Neeko
762 games
Pantheon
800 games
Vel'Koz
707 games
Xerath
2,031 games
Zyra
2,106 games
Zilean
899 games
Lux
3,712 games
Brand
1,310 games
Swain
1,039 games
Thresh
4,692 games
Leona
1,919 games
Karma
2,007 games
Taric
368 games
Morgana
1,811 games
Nautilus
3,320 games
Twitch
363 games
Sona
878 games
Bard
1,703 games
Rell
1,473 games
Seraphine
959 games
Ashe
2,028 games
Braum
629 games
Lulu
3,004 games
Blitzcrank
2,849 games
Nami
2,226 games
Rakan
3,384 games
Maokai
614 games
Alistar
1,563 games
Milio
1,760 games
Renata Glasc
1,814 games
Janna
2,033 games
Soraka
2,093 games
Shaco
567 games