It can be protected by a psi-barrier, which Kain Blueriver could enhance. The psi-barrier can be placed in three layers on one side, giving it enough power to withstand even Ragudo Mezegis's Graviton Beam.
The Swordbreaker is armed with numerous weapons, including psi-blasters and powerful leap rail cannons which can generate black holes. Canal frequently adds extra weapons systems such as missile launchers to it. Mille even bought a Pon-Pon gun which was attached to the ship's hull (it was eventually destroyed in combat).
The strongest weapon system is the Plasma Blast, which requires a psychic such as Kain as its power source. To use it, "boost chips" must be deployed in front of the ship, briefly forming a six-pointed star-like formation. In addition to dealing high damage, it can counter similar blasts.