Firesbane

Firesbane is a magical rapier given to Alas Trisquirelle by Raljuun as a farewell present as the former was leaving his employ.

Description
Magical Item - Common (requires attunement)

"This weapon gives off a biting cold and the grip looks almost like ice, but you know as soon as you grasp it and a cool shiver runs up your arm that this is no fragile display piece. "

Twice daily you can activate Firesbane to add an extra 1d6 cold damage to a successful attack.

Alternatively, when submerged in water Firesbane will freeze up to a 10 foot cube of non-sentient liquid per charge.