Dungeons and Dragon Ball (Ver. O.1.2)

You conjure ki threads at a point within range. The threads fill a 20-foot Cube there for the duration. The threads are Difficult Terrain, and the area within them is Lightly Obscured. If the threads aren’t anchored between two solid masses (such as walls or trees) or layered across a floor, wall, or ceiling, the threads collapse on themselves, and the spell ends at the start of your next turn. Threads layered over a flat surface have a depth of 5 feet. The first time a creature enters the threads on a turn or starts its turn there, it must succeed on a Dexterity saving throw or have the Restrained condition while in the threads or until it breaks free. A creature Restrained by the threads can take an action to make a Strength (Athletics) check against your spell save DC. If it succeeds, it is no longer Restrained. The threads are flammable. Any 5-foot Cube of threads exposed to fire burns away in 1 round, dealing 2d4 Fire damage to any creature that starts its turn in the fire.