Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
Strengths and Weaknesses against Champs
Sona is fairly squishy, but has alot of utility. You are practically dead when you get hit by CC so try to doge and juke, as that will come in handy when playing Sona. Sona excels against utility, squishy, slow, and heavy ability users. Examples are Ekko, Lulu, Janna, Nunu, Trundle, Kalista, and Bard.
What Adc does Sona do good with?
Good adc's for sona are burst or poke adc's. Examples are Ezreal, Graves, MF, and Caitlyn. Sona does horrible with Vayne, Tristana, and Kog'maw due to squishyness and on-hit stuns