The strong defence potion is a one dose potion only available while training the Dungeoneering skill. Drinking the potion boosts a player's Defence level by 3 + 15% of their level. Its effect is equal to that of an extreme defence potion.
It is made by adding Buckthorn and Void dust to a Vial of water. This requires level 75 Herblore and grants 170.5 experience in Herblore. This potion can only be made in dungeons with complexity level ≥5.
- There used to be a glitch when making this potion. Instead of making the potion, a message used to come up saying players needed 85 Herblore instead of 75. This has since been fixed.
This information has been compiled as part of the update history project. Some updates may not be included - see here for how to help out!
- patch 25 September 2013 (Update):
- The Defence set of potions now boost the correct amount of Defence skill points.