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.
|Super runecrafting (3)||1||3,486||3,486|
|Item quantity required||1|
|Base junk chance||0.0%|