Staff of the Ivory Claw

This gray-and-cerulean staff is topped with a small dragon claw carved from ivory. While holding the staff, you gain a +1 bonus to spell attack rolls. Whenever you score a critical hit with a spell attack, the target takes an extra 3d6 radiant damage.

Versatile: This weapon can be used with one or two hands. A damage value in parentheses appears with the property—the damage when the weapon is used with two hands to make a melee attack.

Arcane Focus: An arcane focus is a special item designed to channel the power of arcane spells. A sorcerer, warlock, or wizard can use such an item as a spellcasting focus.

Proficiency: simple, staff, quarterstaff Source: Explorer's Guide to Wildemount p. 270 (Third Party)