Black mace

Black Mace is a free-to-play item on the OSRS Grand Exchange in the weapons category.

In-game examine text: "A spiky mace."

It has a Grand Exchange buy limit of 125 every four hours, a high alchemy value of 259 gp, and item ID 1426.

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Black Mace currently has a flip margin of −24 gp, which isn't profitable to flip right now despite 900 trades over the last 24 hours.

Items with negative or zero margins like this are better watched than actively flipped until the spread widens.