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Tyranids Portal

Bonesword⁴

A Bonesword is a form of Tyranid close-combat bio-weapon which can drain the life-force out of its victims.¹ It is serrated on both edges and was originally a creature's massively elongated horn.³ A bonesword is alive with a rudimentary sentience, and gradually grows in length as well as repair any battle damage to itself and maintain a deadly monomolecular edge. It has a small brain situated deep within its hilt. However, it is completely slaved to the will of its wielder and is incapable of any independent thought.^{1, 3}

A bonesword is made of chitin and constantly crackles with powerful psychic energy that flows along embedded nerve tendrils to create a psychic field around the blade, effectively creating a biological version of a force weapon. This energy amplifies in potency when in close proximity to another bonesword, such as when used in pairs³. It can also generate a powerful surge of psychic energy when stimulated by its user, and its hilt, when stimulated by combat, can send out psychic pulses to nearby Tyranid creatures with the aims of whipping them into a killing frenzy.^{1, 2 (Canon Conflict)} This ability is not present in the 5th edition.

Sources

• ¹: Codex: Tyranids (5th Edition), p.83
• ²: Codex: Tyranids (4th Edition), p.31
• ³: Codex: Tyranids (2nd Edition), p.52
• ⁴: Bonesword