League of Legends is a multiplayer online video game developed and published by Riot Games. The players control a champion and the goal of the game is to destroy the opposing team’s “nexus”, a structure which is located in the middle of a team’s base. The players build their champions by collection items or gaining experience over the course of the game.

Olaf the Berserker is a character known for his axe. He throws his axe to the target location which causes physical damage to all enemies it passes through. His speed increases 1% for every percentage his health decreases.