Staff, rare (requires attunement)
This staff is the concentrated power of Gorthok the Thunder Boar. The thunder of Talos pulses through its gem-like shaft.
This staff can be used as a spellcasting focus. When done so, all spells that deal thunder or lightning damage do an additional 1d4 lightning damage AND 1d4 thunder damage.
Damage: 1d8 bludgeoning
Weight: 13 lbs
Properties: Magical
You invoke both death and life upon a 10-foot-radius sphere centered on a point within range. Each creature of your choice in that area must make a Constitution saving throw, taking 2d6 necrotic damage on a failed save, or half as much damage on a successful one. Nonmagical vegetation in that area withers.
In addition, one creature of your choice in that area can spend and roll one of its unspent Hit Dice and regain a number of hit points equal to the roll plus your spellcasting ability modifier.
At Higher Levels: When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d6 for each slot above 2nd, and the number of Hit Dice that can be spent and added to the healing roll increases by one for each slot above 2nd.