- Allows a second core to be installed in the weapon.
- The wielder chooses which core fires with each shot.
- Each core's Soul cost applies independently when that core is used.
- Compatible with Cannon Frame and Heavy Cannon Frame only.
- Second core must be supplied separately.
- Can be added at time of crafting or installed later by an Artificer using the Runic Tech Upgrade skill.
- Increases the elemental magic bonus die of precious stone cores by +1d4.
- Compatible with Crystal and Precious Stone Cores only.
- Does not apply to Ylem Cores.
- Can be added at time of crafting or installed later by an Artificer using the Runic Tech Upgrade skill.
- Reduces the Soul cost per shot by 1 (minimum 1).
- Can be added at time of crafting or installed later by an Artificer using the Runic Tech Upgrade skill.
- Attaches a short sword to the cannon frame allowing melee attacks.
- Compatible with Cannon Frame and Heavy Cannon Frame only.
- The sword's attack value is added to the cannon's melee attack when used as a bludgeoning weapon.
- Sword must be supplied separately; cost is the attachment fee only.
- Sockets a rune stone into the weapon to act as a Soul reservoir.
- The weapon draws from the stone's stored Soul instead of the wielder's Soul directly.
- When the stone is depleted it must be recharged at the College of Arcana (10 shillings per 2 Soul).
- The rune stone is not included; must be supplied separately.
- Can be added at time of crafting or installed later by an Artificer using the Runic Tech Upgrade skill.
- Improves Focus by+2.
- Can be added to any rune cannon frame at time of crafting or installed later by an Artificer using the Runic Tech Upgrade skill.
- Removes stealth and sound-related penalties when firing.
- Compatible with hand cannons, standard cannons, and compact frames.
- Can be added at time of crafting or installed later by an Artificer using the Runic Tech Upgrade skill.
