Blighted karambwan

The Blighted karambwan is a members-only Old School RuneScape item — “A nutritious octopus, now blighted so it can be eaten only in the Wilderness.”. Its Grand Exchange buy limit is 10,000 per 4 hours. Right now it buys at 42 gp and sells at 46 gp — a net margin of 4 gp (9.5% ROI) after the 2% Grand Exchange tax. High alchemy yields 30 gp.

To flip it, place a buy offer near 42 gp and a sell offer near 46 gp; the spread minus GE tax is your profit. Confidence figures are model estimates from live OSRS Wiki prices, not guarantees — flip responsibly.