Pentakill is a metal band initially referred to in the MOBA game League of Legends, created by Riot Games Inc. The style could be described as a mix of Power Metal and Heavy Metal, although some songs are representative of styles such as orchestral ("Orb Of Winter") and electronic/industrial ("The Hex Core"). Within the video game lore, the members are: Karthus - Vocals Olaf - Drums Mordekaiser - Guitar Yorick - Bass Sona - Keyboard All members reside on Valoran, a continent on the fictional world of Runeterra.