The Bard build for Support is Locket of the Iron Solari and Guardian. This LoL Bard guide for Support at Platinum+ on 13.18 includes runes, items, skill order, and counters.
Bard Counters
Bardwinslane against...
Win Rate
Matchup Rate
Janna
1312 games
2.3%
Alistar
1660 games
2.9%
Milio
972 games
1.7%
Amumu
305 games
0.5%
Braum
822 games
1.4%
Renata Glasc
584 games
1.0%
Rell
1297 games
Rakan
3096 games
5.4%
Leona
1474 games
2.6%
Shaco
599 games
Taric
520 games
0.9%
Nautilus
3164 games
5.5%
Maokai
450 games
0.8%
Soraka
2264 games
4.0%
Nami
1843 games
3.2%
Lulu
2224 games
3.9%
Blitzcrank
2344 games
4.1%
Thresh
4345 games
7.6%
Sona
1005 games
1.8%
Karma
2177 games
3.8%
Morgana
1185 games
2.1%
Seraphine
783 games
Ashe
301 games
Yuumi
1307 games
Bardloseslane against...
Senna
3512 games
6.1%
Vel'Koz
568 games
Xerath
1832 games
Heimerdinger
333 games
0.6%
Neeko
588 games
Swain
1014 games
Brand
957 games
Zyra
2091 games
3.7%
Lux
2697 games
4.7%
Pyke
2185 games
Zilean
961 games
Pantheon
533 games