Arlo's Aimbot

This small gadget takes the form of a scope and can be mounted onto your body (e.g. a shoulder pad or wrist mount) or onto a weapon.

When you make your first attack roll on your turn, you can choose to activate the Aimbot, granting yourself advantage on attack rolls for the next 1d4 rounds. Once these rounds are up, attack rolls against you have advantage for 1 round as the machine powering down leaves you compromised.

The Aimbot then powers down and it cannot be used again until you finish a long rest.