Archives of Nethys

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Weapon Fusions

A weapon fusion is a small, prepackaged add-on that can be attached to any weapon to infuse it with magic. Adventurers use weapon fusions to customize their weapons for a specific enemy or to increase a weapon’s overall effectiveness. Weapon fusions are magic unless stated otherwise. While this causes the weapons they are installed in to be considered hybrid items, in truth the weapon and the fusion still operate separately. An ability that affects a magic item could affect the fusion installed in a weapon, but that would not prevent the weapon’s core function from operating normally unless the weapon was also independently a magic device. The hybridized fusion (see page 194) is an exception to this rule, as noted in its description. Weapons with fusions are considered magic for the purpose of overcoming damage reduction.
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Source Starfinder Armory pg. 65
Item Level 1
The secured fusion ties the weapon to a single owner. When you use your weapon, it functions normally, but when wielded by any other, it remains inert and useless. Any analog, nonmagical properties of the weapon that do not require ammunition or charges still function, so a club would still be a club, but a pistol becomes merely an improvised weapon. Only the person who places a secured fusion seal on a weapon can remove it from that weapon. Once removed, the fusion seal can be affixed to a new weapon by a new owner. Even if not the owner, a character trained in Mysticism can remove an installed secured fusion or fusion seal using a process similar to transferring a fusion. For a fusion, this costs half as much as purchasing the fusion for the weapon on which it is currently installed; for a seal, this is half the cost of the seal itself. The process takes 8 hours. Afterward, a fusion can be installed on a new weapon and assigned a new owner for the installation cost, and a fusion seal can be used normally.