Demonic quill
If you bought your full buy limit on Demonic quill right now, you'd clear roughly 0 GP after the 2% GE tax. That's the ceiling. The actual margin shifts every few minutes, especially after Wednesday updates and weekend supply spikes.
These look like they can be attached to a slayer helmet. Members-only on the GE. Buy limit unknown. A 2% Grand Exchange tax applies to sales, capped at 5,000,000 GP per item.
How Demonic quill trades on the Grand Exchange
Because it is members-only, it is only visible on the Grand Exchange for P2P accounts. Its margin has been volatile in the last hour, so treat this snapshot with extra caution and check the live numbers first.
Live flip margin
Don't miss the next move on Demonic quill
The margin can swing 30% within an hour after an OSRS update or a weekend supply shift. Set a price alert in GE IQ and you'll get pinged the second it crosses your target, no manual checking needed.
Set up an alert for Demonic quill →4,500+ items tracked live · 100% free · No signup
GE IQ is a single-page tool that grades every OSRS flip in real time. Built by a flipper, for flippers. Demonic quill is one of thousands you can track, alert on, and stack in your portfolio.
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