Arlo's EMP

This small crystal bound in a metal clamp has a small red button on the side.

As an action, you can press the button and throw the EMP at a point you can see within 30 feet. When it impacts, the following effects take place within a radius of 15 feet based at the point at which the EMP made impact:

• Any Constructs within the area take 4d6 lightning damage and are incapacitated until the start of your next turn.
• Any magic items within the area are rendered inactive until the start of your next turn.
• Creatures within the area have disadvantage on saving throws against being stunned until the start of your next turn.