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Wrath of the Lich KingWrath of the Lich King era data from Blizzard's titan client, build 3.80.2.69874Also on WoW Forever · Classic Era · The Burning Crusade · MoP Classic · Retail (Midnight)
Improved Corruption

Spell

Improved Corruption

Physical

Warlock

Instant castSelf Only

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Improved Corruption
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Tooltip

Increases the damage done by your Corruption by%, and increases the critical strike chance of your Seed of Corruption by 0%.

Spell facts

SchoolPhysical
Cast timeInstant
EffectApply Aura
ClassWarlock
RangeSelf Only
Taught byAffliction (skill 1)
Spell ID17813

Datamined from the current retail build. Numbers that scale with level or stats are shown at their base value.

More Affliction spells

Amplify CurseAmplify CurseAtrocityAtrocityContagionContagionCorruptionCorruptionCurse of AgonyCurse of AgonyCurse of DoomCurse of DoomCurse of Doom EffectCurse of Doom Effect

WoW Forever: what our data shows

Sighted in the WoW Forever beta clientBuild 3.80.2.69874, read from the beta game data we hold
Also in the Classic Era clientYes - this spell is in the Classic Era client's data too
Effect rows sighted2 effect rows in the beta client's data

A sighting in the beta client is a fact from our own database; the launch roster is Blizzard’s to finalize. World of Warcraft: Forever launches November 4, 2026. World of Warcraft: Forever is Classic+, launching November 4

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