B. F. Sword is a basic item in League of Legends.
- 116.1% gold efficient.
- Its name is a reference to the weapon "BFG 9000" from the Doom franchise which stands for "Big F***ing Gun"; as a result, unofficially abbreviates "Big F***ing Sword".
- Rioters and players have jokingly stated that "B. F." stands for "Best Friend.", and at one point Guinsoo posed an item that he termed the "B. F. F. Sword" (Best Friend Forever). 
- The large single stat makes a significant difference when purchased in the early game, improving farming, harassing, and lane advantage.