So are you going to nerf every class similarly?

Bard

Vicious Mockery: avg 10 / 55 casts

Cleric

Word of Radiance: avg 13.5 / 41 casts
Sacred flame: avg 18 / 31 casts

Druid

Produce Flame: avg 11 / 50 casts
Poison Spray: avg 22.5 / 25 casts

Sorcerer

Acid Splash: avg 10.5 / 52 casts

Warlock

Chill Touch: avg 11 / 50 casts

Wizard

Ray of Frost: avg 11 / 50 casts

Artificer

Thunderclap: avg 13.5 / 41 casts