Heavy ballista

Heavy Ballista is a members-only item on the OSRS Grand Exchange in the other category.

In-game examine text: "A powerful weapon forged from the wreckage of an airship."

It has a Grand Exchange buy limit of 8 every four hours, a high alchemy value of 570.0k gp, and item ID 19481.

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Heavy Ballista currently has a flip margin of −1.4k gp, which isn't profitable to flip right now despite 1,315 trades over the last 24 hours.

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