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From Pathfinder Treasure Vault (Remastered), which isn't enabled.

Boreal Staff (Major)

ITEM 17
MAGICALMONKSTAFFTWO-HAND-D8
Price 13500 gp
Usage held in 1 hand
Bulk 1
Category simple
Group club
Damage 1d4 bludgeoning

A boreal staff is chiseled from a cylinder of ice to form a spiky, jagged icicle, its surface gleaming with the colors of the northern lights. It gives the air around you a distinct chill. When used as a weapon, a boreal staff is a +3 greater striking frost staff.

Activate (concentrate)
Frequency once per 10 minutes
Effect Attempt a Strike using the staff. That Strike deals 2d4 cold additional damage. This additional cold damage ignores cold resistance.
Activate Cast a Spell
Effect You expend a number of charges from the staff to cast a spell from its list.
Craft Requirements Supply one casting of all listed ranks of all listed spells.
Pathfinder Treasure Vault (Remastered)ORC