Xanathar's Guide to Everything

Earthbind

2-level Evocation

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.