The name "Sona" is derived from the Latin prefix denoting sound, "son-", attached to the Latin suffix for feminine objects, "a".
A "Šablóna:W" is someone highly skilled in a field who wishes to teach others in said field.
Sona is the second champion to use the stance mechanic, the first being Šablóna:Ci.
The name of Sona's weapon, the "Etwahl", is pronounced the same as the French word "étoile", which means "star".
The Etwahl is likely a reference to the Šablóna:W, a Chinese string instrument.
A power chord is a type of chord that consists of a doubled root note and the fifth. It's a key element of many styles of rock music.
Sona is a mute, yet can talk to the Summoner. She claims that only "you" can hear her and says the phrase "From my mind, to yours." This indicates the mental connection between a Summoner and their Champion, which is a recurring feature in League Judgements.