Steam battlestaff

Steam Battlestaff is a members-only item on the OSRS Grand Exchange in the weapons category.

In-game examine text: "It's a slightly magical stick."

It has a Grand Exchange buy limit of 8 every four hours, a high alchemy value of 10.2k gp, and item ID 11787.

View on OSRS Wiki

Steam Battlestaff shows an active flip setup with a margin of +11.8k gp and 536 trades over the last 24 hours.

At the buy limit of 8 every four hours, max profit per cycle is about 94.4k gp — high margin with healthy liquidity.