Spiritmaster's Bracelet

Wondrous Item Varies [While charged, it is attuned to the creature.]

You can infuse the bracelet with some of your magical energy and release it in a potentially devastating attack. As a bonus action on your turn, you can expend one of your spell slots to charge the bracelet. While the bracelet is charged you cannot take it off or recieve the spell slot that you used to charge it. Before you make a melee attack you can empower it with the magic energy stored in the bracelet. You recieve 1d4 x spell slot level temporary hitpoints. If the attack hits it does an extra 2d8 x spell slot level force damage, otherwise the energy dissipates into nothing. The bracelet can then be charged after the next sunrise.