The best picks not in lane to counter Sona include Kog'Maw, Sivir, and Ezreal. These champions are all great at countering Sona with decent win rates over 56%. Even if these Sona counter picks are not taken opposite your position, it's not a good idea to take her into one of these matchups. They will usually win against Sona.
Conversely, if the opposite team brings either Seraphine or Miss Fortune, you should strongly think about selecting her, as she easily dominates these selections with win rates over 55% against both ofthem.
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