Automata Bullet

This inconspicuous brass bullet looks ordinary until its about to hit an enemy. Just before it hits, it deploys a tiny robot to menace its target distracting it.

A creature can use a firearm to fire this bullet towards an enemy. Instead of dealing damage, the bullet explodes and a tiny automata begins to harass the enemy.

A harassed creature gains disadvantage on all attack rolls, and attack rolls made against it have advantage. The harassed creature can stop its harassment by using its action to swat the automata away. The creature must pass a DC 16 dexterity saving throw to do so.

Once swatted the automata must be repaired with a DC 16 Arcana check before it can be used again.