Amulet of the Soul-Bound +1

Attunement to the Amulet requires your soul to be bound to an entity capable of incasing your soul in the pendant. The amulet is indestructible until either your soul is released from it or your contract with your patron ends. You can use the amulet as a spellcasting focus for your spells while wearing or holding it, and you gain a +1 bonus to spell attack rolls and to the saving throw DCs of your warlock spells.

In addition, when attuned to this amulet, when you drop to 0 hit points you are instead dropped to one hit point. Natural ones on death saving throws are also considered a standard failure rather than an instant death

Notes: Bonus: Spell Attacks, Bonus: Spell Save DC, Warlock