The Sona build for Support is Echoes of Helia and Summon Aery. This LoL Sona guide for Support at Platinum+ on 13.24 includes runes, items, skill order, and counters.
Sona Counters
52.8%
(-0.4%)
46.2%
(-0.3%)
2.6%
(+0.1%)
0.1%
(-0.0%)
360
(-8)
