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Reason: Changes on the amount of runes created per essence with level boost
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For the potion flask version, see Extreme runecrafting flask.

Extreme runecrafting potions are upgraded super runecrafting potions. It is made by adding spider venom to a super runecrafting potion, requiring level 91 Herblore and granting 250 experience per potion.

When a player drinks the potion, they will get a Runecrafting boost based on their experience in the skill, from +3 up to a +17 boost at level 99. After the 6 minutes have passed, the boost will slowly degrade at a rate of 1 level per minute.

When crafting law runes this potion was able to reach an additional +1 per essence.

Creation[]

Extreme runecrafting (3) Extreme runecrafting (3)
Herblore-Make-X GE icon
250 XP--
Requirements
Herblore Herblore level91
P2P icon Members onlyYes
Materials
ItemQuantityPriceTotal
Super runecrafting (3)Super runecrafting (3)183,85283,852
Spider venomSpider venom1421421
Total price84,273

Flask[]

This potion can be made into an extreme runecrafting flask by using at least six doses of it with a potion flask. Players do not need a specific level to turn potions into flasks.

Disassembly[]

[FAQ] • [doc]
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