Gauntlets of Rage

You gain the power of never-ending fury. After you make a melee weapon attack, you automatically enter a special fury for 1 minute. While furious, you can't cast spells, can't verbally communicate, and are immune to the Charmed and Frightened conditions. Each time you deal damage, you regain 2d8 hit points and may immediately remove a condition you currently suffer from or end this fury. Additionally, while in this fury, you may spend a spell slot before you make a melee attack. Doing so causes the attack to deal an extra 3 (1d6) Necrotic damage per level of spell slot expended, if the attack hits. Once used you may not use this fury again until you finish a short or long rest.