Amulet of the Serpent Sorceress

Granted for services to Vanalir and her Mistress, this amulet is designed especially for the Sorceress Lylia. It provides a scaling bonus to spell attack and save DCs (+1 that increases to +2 at 10th level and +3 at 15th level) and has a number of charges equal to her proficiency bonus. For a single charge, while casting a spell, Lylia can reroll all 1s on the damage dice and ignore the necrotic resistance of her target. Once per day, Lylia can, as either a bonus action or as part of the use of sorcery points, expend all remaining charges of the amulet to provide a number of sorcery points equal to the remaining charges. If used as part of a use of sorcery points, these new ones can be used to fuel that use as well.  The wielder can also expend all charges when casting a necrotic spell to deal maximum damage instead of rolling.

Notes: Bonus: Ranged Spell Attacks, Bonus: Spell Save DC, Requires attunement by Lylia