Skingorger

Skingorger is an enchanted greatsword wielded by Yasha.

Properties
This massive rust-colored blade was once wielded as a symbol of dominance by the ruling overlord in Igrathad. You get +1 to attack and damage rolls made with this weapon. While attuned to this greatsword, you can use your bonus action to take a point of exhaustion to empower this blade for 1 minute, so that all attacks deal an additional 1d8 acid damage, and it critically hits on a roll of 19 or 20. Once you use this feature, it cannot be used again until the next dawn.