Eyes blazing and fists crackling with roiling energies, Space Marine Librarians stride into battle to destroy their foes. Some hurl blasts of warp-force that crush their victims to paste, while others twist with the flow of time itself or revitalise their brothers with incredible surges of dynamism. However they choose to fight, all Librarians are powerful psykers, harnessing the potent mutation they bear as a force to defend Humanity.