Octavius's Saber

Weapon (rapier), legendary

The swirling guard of this powerful blade is a mesh of floral and serpentine sculpture. You gain a +3 bonus to attack and damage rolls made with this magic weapon, which deals an additional 2d8 piercing on a hit. When you deal damage with an attack using this weapon, flip a coin. On a heads, all dice are treated as if they had rolled their maximum value, and on a tails, they are treated as if they had rolled their minimum value.

He swung the blade with a grace and beauty that belied its lethality. These were the movements of a snake coming in for the kill, paralyzing its prey with its entrancing motions. The blade would leap, bite, and rend as if it had a mind of its own: the instinct of a cunning predator, at its finest.