All Grey Knights carry some form of the Nemesis force weapon, be it a sanctified sword, axe or halberd. Each is consecrated and anointed with sacred oils, psychically charged and inscribed with devotional scripts and wards to destroy the denizens of the immaterium. The potency of a Nemesis force weapon is in direct proportion to the psychic might of the wielder as they can channel warp-energies into the weapon to blast foes apart.
Nemesis force weapons have the following characteristics when wielded by different ranks of Grey Knights:
| Rank | Strength bonus | Power weapon | Force weapon |
|---|---|---|---|
| Grey Knight | +2 | No | No |
| Justicar | +2 | Yes | No |
| Terminator | +2 | Yes | No |
| Brother-Captain | +2 | Yes | No |
| Grand Master | +2 | Yes | Yes |
Errata — Chapter Approved: Codex: Daemonhunters Q&A (v1.0): Nemesis force weapons are one-handed, as shown on the models.