Juggling Hammer

Weapon (light hammer), Rare

This light hammer is weighted for easy throwing and catching. Attack and damage rolls made with this weapon have a +1 bonus.

Returning. After you make an attack with this weapon, it immediately returns to your hand or inventory.

Weapon juggler. The first time you damage a creature on your turn with an attack with this weapon, that attack deals bonus damage equal to the number of different damage types you have dealt to it prior on this turn. The number of types is counted before this attack's damage, and does not count the attack itself. Only damage types dealt to the attack's target count.