ForeverDiff
Spells /Arcane Instability
Spell · Physical · Ranks 1-3

Arcane Instability

Arcane Instability was changed in WoW Forever: 3 ranks differ from Classic Era. Rank 1: instant cast (updated tooltip text, effects and rank text). Pick any rank to compare its tooltip with Classic Era.

Granted by the Mage talent Arcane Instability. This is the spell it teaches; the talent's own change is on its page.

Spell · Physical · Rank 1 changed

Arcane Instability was changed in WoW Forever: updated tooltip text, effects and rank text. Now instant cast. Full tooltip comparison with Classic Era below.

Arcane Instability tooltip: Classic Era vs WoW Forever

The same tooltip players see in-game, side by side, with each changed line marked.

Classic Era 1.15.9.69722
Arcane Instability
Rank 1 · Physical school
Instant
Increases your spell damage and critical strike chance by 1%.
Forever 1.60.1.69893
Arcane Instability
Physical school
Instant
Increases the damage done by your spells by 1% and your critical strike chance by 1%.
changed value added in Forever removed in Forever

Also changed behind the tooltip: effects (not shown in a tooltip line). See the full field diff below for both values side by side.

of 3
Raw field diff every changed column
Field Classic Era Forever
description Increases your spell damage and critical strike chance by $s1%. Increases the damage done by your spells by $m1% and your critical strike chance by $m2%.
effects [ { "amplitude": 0, "aura": 108, "auraPeriod": 0, "basePoints": 0, "chainTargets": 0, "dieSides": 1, "effect": 6, "index": 0, "miscValue": [ 0, 0 ], "realPointsPerLevel": 0, "triggerSpell": 0, "variance": 0 }, { "amplitude": 0, "aura": 108, "auraPeriod": 0, "basePoints": 0, "chainTargets": 0, "dieSides": 1, "effect": 6, "index": 1, "miscValue": [ 22, 0 ], "realPointsPerLevel": 0, "triggerSpell": 0, "variance": 0 }, { "amplitude": 0, "aura": 107, "auraPeriod": 0, "basePoints": 0, "chainTargets": 0, "dieSides": 1, "effect": 6, "index": 2, "miscValue": [ 7, 0 ], "realPointsPerLevel": 0, "triggerSpell": 0, "variance": 0 } ] [ { "amplitude": 0, "aura": 108, "auraPeriod": 0, "basePoints": 1, "chainTargets": 0, "effect": 6, "index": 0, "miscValue": [ 0, 0 ], "realPointsPerLevel": 0, "triggerSpell": 0, "variance": 0 }, { "amplitude": 0, "aura": 108, "auraPeriod": 0, "basePoints": 1, "chainTargets": 0, "effect": 6, "index": 1, "miscValue": [ 22, 0 ], "realPointsPerLevel": 0, "triggerSpell": 0, "variance": 0 }, { "amplitude": 0, "aura": 290, "auraPeriod": 0, "basePoints": 1, "chainTargets": 0, "effect": 6, "index": 2, "miscValue": [ 0, 0 ], "realPointsPerLevel": 0, "triggerSpell": 0, "variance": 0 } ]
subtext Rank 1 none

Arcane Instability change history by build

Build Compared to Change
1.60.1.69893 1.15.9.69722 3 fields
1.60.1.69876 1.15.9.69722 3 fields

See every changed record in 1.60.1.69893 →

Spell · Physical · Rank 2 removed

Arcane Instability was removed in WoW Forever and only exists in Classic Era. Classic Era spell: instant cast.

Arcane Instability (Rank 2) tooltip in Classic Era

Present in Classic Era, gone in Forever. The last-known record is shown.

Classic Era 1.15.9.69722
Arcane Instability
Rank 2 · Physical school
Instant
Increases your spell damage and critical strike chance by 2%.
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Arcane Instability (Rank 2) change history by build

Build Compared to Change
1.60.1.69893 1.15.9.69722 removed
1.60.1.69876 1.15.9.69722 removed

See every removed record in 1.60.1.69893 →

Spell · Physical · Rank 3 removed

Arcane Instability was removed in WoW Forever and only exists in Classic Era. Classic Era spell: instant cast.

Arcane Instability (Rank 3) tooltip in Classic Era

Present in Classic Era, gone in Forever. The last-known record is shown.

Classic Era 1.15.9.69722
Arcane Instability
Rank 3 · Physical school
Instant
Increases your spell damage and critical strike chance by 3%.
of 3

Arcane Instability (Rank 3) change history by build

Build Compared to Change
1.60.1.69893 1.15.9.69722 removed
1.60.1.69876 1.15.9.69722 removed

See every removed record in 1.60.1.69893 →

Read from build 1.60.1.69893 , compared against Classic Era 1.15.9.69722·synced Sep 17, 2026·how we read this →