Selonia

The Orb of Draconic Ascendancy is a powerful artifact that grants dominion over draconic forces. The wielder can channel ancient draconic energy, causing their next melee attack to deal an additional 5d6 elemental damage of their choice (acid, fire, lightning, or cold). The target must succeed on a DC 19 Constitution saving throw or be stunned until the end of their next turn. Additionally, the orb emits a protective aura that grants the wielder resistance to the damage of their chosen element.