Strong weapon poison is a one dose poison only available in the Dungeoneering skill.
It is made by adding Winter's grip and Firebreath whiskey to a Vial of water. This requires level 87 Herblore and grants 205.5 experience in that skill. This potion can only made in dungeons with complexity level ≥5.
Applying this potion would make your attacks have a 15% chance per hit of poisoning the target for 10 minutes. When suffering from strong weapon poison, enemies will take up to 87 damage every 10 seconds, gradually reducing until it wears off in 3 minutes. Using it also changes the potion to a Weapon poison.
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