Use: Permanently teaches you this glyph. Increases the duration of Unstable Affliction, Corruption, Doom, and Agony by 50%, and reduces their damage by 20%.
Use: Permanently teaches you this glyph. Your spell will heal you for 20% of the damage dealt.
Sell Price: 1
Notes
Corruption is a simple damage over time spell which places a magic debuff on the target, causing shadow damage. As with most DoTs, once cast it inflicts damage upon its victim every two seconds, and continues until either the effect wears off, or the target dies. This spell cannot generate critical hits.
Corruption can be cast with your target behind you, and since it is instant cast it can also be cast while running. As such, this ability is excellent for kiting enemies. Since walking backward is much slower than running forward or strafe-running, it is always best to do one of the latter two things while attempting to kite something.
Patch changes
Patch 3.0.8 (2009-01-20): Corruption will now gain the correct damage modifiers for the creature type of the target.
Patch 2.0.3 (09-Jan-2007): The bonus that the spells "Corruption" and "Curse of Agony" receive from bonus spell damage effects has been decreased by approximately 10%.
Patch 1.8.0 (10-Oct-2005): Duration reduced and damage per tick increased. Total damage over duration approximately identical.