Extreme warmaster's potion(6) can be made by adding a Extreme attack (4), Extreme strength (4), Extreme defence (4), Extreme magic (4) and Extreme ranging (4) in a Crystal flask.
The ability to make Extreme warmaster's potion(6) is unlocked by acquiring the recipe while Dungeoneering. Once you've found it, bring it to Lady Meilyr and pay 400,000 gold coins.
This Data was submitted by: Jarkur.
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