The following powers are listed in the 5th Edition Space Marine Codex for Space Marine Librarian HQ units.

Note: All rules are necessarily truncated. For precise wording, points values, etc. please refer to a print copy of the 5th Edition Space Marine Codex.

Librarians

A Space Marine Librarian has two psychic powers, but may only use one at a time. Upgraded librarians may use more than one power per turn.

Powers

• Smite: A psychic shooting attack.
• Force Dome: Grants an invulnerable save to the librarian and his unit.
• Machine Curse: A psychic shooting attack against a vehicle.
• The Avenger: A template based psychic shooting attack.
• Quickening: Grants Fleet and a boosted Initiative stat for the assault phase.
• Null Zone: Forces enemies to re-roll Invulnerable Saves.
• Might of the Ancients: Increases the Librarian's Strength and Armour Penetration against vehicles in the Assault Phase.
• The Gate of Infinity: Teleports the Librarian and any unit he is with.
• Vortex of Doom: High strength psychic shooting attack with a blast template that has a chance to fail and affect the Librarian.