Sap Warrior

Sap Warrior is an Ancient Curse unlocked after The Temple at Senntisten. It is used in the same way as normal prayers, except you must pray at the altar beneath the Digsite to be able to activate it.

When activated, this prayer will randomly lower your opponent's Attack, Strength, and Defence by 10% while you are in combat, and over time this drain will increase to 20%.

The Defence drain stacks with Sap Mage as well as Sap Ranger, but does not lower defence by anything more than 10% initially and 20% total if used in conjunction with the other two.

Note that this curse has no effect against enemies that do not use melee attacks. The only exception is when the curse drains the enemies Defence.