DnD 5e

Smitar of Superiority

Adventuring Gear Magic,Finesse,Light,Cursed Rare (this item requires attunement) [Must Be Battlemaster Fighter]

+1 Superiority Die and +1 Maneuver. The bonus is doubled at level 7. The bonus is triple at level 11. The weapon becomes +1 at 5th level, +2 at 11th, and +3 at 17th. Curse - If you are 15ft away from the Scmitar, you lose 1d4 superiority dice every round.

Cost: 1000gp Weight: 3lb