Burst of Knowledge

Burst of Knowledge was changed in WoW Forever: range reduced from 40 yd to 0 yd, effect values changed, tooltip now says "Reduces the Mana cost of all spells by 150 for 10 sec.", buff text now says "Mana costs reduced by 150.", rank text Rank 1 to none. Now instant cast. It is the Use effect of 2 Trinket items the client lists without their names or tooltips. Full tooltip comparison with Classic Era below.

Burst of Knowledge tooltip: Classic Era vs WoW Forever

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

Classic Era Oct 27, 2026

Burst of Knowledge

Rank 1 · Arcane school

40 yd range · Instant

Requires level 60

Reduces mana cost of all spells by 100 for 10 sec.

Reduced mana cost.

Forever Oct 22, 2026

Burst of Knowledge

Arcane school

40 yd range · Instant

Reduces the Mana cost of all spells by 150 for 10 sec.

Mana costs reduced by 150.

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.

Raw field diff every changed column

Field	Classic Era	Forever
auraDescription	Reduced mana cost.	Mana costs reduced by $s1.
baseLevel	60	0
description	Reduces mana cost of all spells by 100 for $d.	Reduces the Mana cost of all spells by $s1 for $d.
effects	[ { "amplitude": 0, "aura": 553, "auraPeriod": 0, "basePoints": -101, "chainAmplitude": 1, "chainTargets": 0, "dieSides": 1, "effect": 6, "index": 0, "miscValue": [ 126, 0 ], "pointsPerResource": 0, "realPointsPerLevel": 0, "triggerSpell": 0, "variance": 0 } ]	[ { "amplitude": 0, "aura": 73, "auraPeriod": 0, "basePoints": -150, "chainAmplitude": 1, "chainTargets": 0, "effect": 6, "index": 0, "miscValue": [ 126, 0 ], "pointsPerResource": 0, "realPointsPerLevel": 0, "triggerSpell": 0, "variance": 0 } ]
rangeIndex	5	1
rangeMaxYards	40	0
subtext	Rank 1	none

Burst of Knowledge changes between Forever builds

Differs from Classic Era in every Forever build since Sep 16, 2026

See every changed record in the Oct 22, 2026 build →

Questions about Burst of Knowledge

Was Burst of Knowledge nerfed in WoW Forever?

Burst of Knowledge is listed as changed, not nerfed or buffed: none of its changes is graded as a buff or a nerf in WoW Forever compared with Classic Era. What changed: range reduced from 40 yd to 0 yd, effect values changed, tooltip now says "Reduces the Mana cost of all spells by 150 for 10 sec.", buff text now says "Mana costs reduced by 150.", rank text Rank 1 to none.

What changed for Burst of Knowledge in WoW Forever?

Range reduced from 40 yd to 0 yd, effect values changed, tooltip now says "Reduces the Mana cost of all spells by 150 for 10 sec.", buff text now says "Mana costs reduced by 150.", rank text Rank 1 to none. The Classic Era and WoW Forever tooltips are shown side by side on this page.

Read from the Oct 22, 2026 build (1.60.1.70532), compared against Classic Era Oct 27, 2026 (1.15.9.70576) ·synced Oct 27, 2026 · how we read this → · report a wrong value