Arrow of the Falling Sands

As an action, you can fire this arrow from a bow. At any point in its flight, you can speak its command word to cause time to halt in a ten-foot radius sphere around it. Each creature in that area must make a DC 21 Wisdom saving throw. On a failed save, the creature is incapacitated, their speed is reduced to 0, and they cannot be damaged or affected by any additional effects. Objects and projectiles, including Arrow of the Falling Sands, in this area become immovable, and cannot be damaged or targeted by any additional effects. Creatures, objects and projectiles entering this area for the first time become subject to these effects. The arrow’s effect lasts until you choose to end it as a bonus action or until dispelled (DC 22). When the effect ends, the arrow becomes nonmagical.