Source: Xanathar's Guide to Everything
2nd-level transmutation
Casting Time: 1 action
Range: 300 feet
Components: V
Duration: Concentration, up to 1 minute
Choose one creature you can see within range. Yellow strips of magical energy loop around the creature. The target must succeed on a Strength saving throw or its flying speed (if any) is reduced to 0 feet for the spell’s duration. An airborne creature affected by this spell descends at 60 feet per round until it reaches the ground or the spell ends.