Seal Duration Increase

Seal Duration Increase (Seal Cost Reduced in Classic Era) was changed in WoW Forever: effect values changed, tooltip now says "Increases the duration of your Seal spells by 4 sec." It is the Equip effect of a Relic item the client lists without its name or tooltip. Full tooltip comparison with Classic Era below.

Seal Duration Increase 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

Seal Cost Reduced

Physical school

Reduces the mana cost of your Seal spells by 20.

Forever Oct 22, 2026

Seal Duration Increase

Physical school

Increases the duration of your Seal spells by 4 sec.

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
description	Reduces the mana cost of your Seal spells by $s1.	Increases the duration of your Seal spells by ${$s1/1000} sec.
durationIndex	21	0
effects	[ { "amplitude": 0, "aura": 107, "auraPeriod": 0, "basePoints": -21, "chainAmplitude": 1, "chainTargets": 0, "dieSides": 1, "effect": 6, "index": 0, "miscValue": [ 14, 0 ], "pointsPerResource": 0, "realPointsPerLevel": 0, "triggerSpell": 0, "variance": 0 } ]	[ { "amplitude": 0, "aura": 107, "auraPeriod": 0, "basePoints": 4000, "chainAmplitude": 1, "chainTargets": 0, "effect": 6, "index": 0, "miscValue": [ 1, 0 ], "pointsPerResource": 0, "realPointsPerLevel": 0, "triggerSpell": 0, "variance": 0 } ]
name	Seal Cost Reduced	Seal Duration Increase

Seal Duration Increase 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 Seal Duration Increase

Was Seal Duration Increase nerfed in WoW Forever?

Seal Duration Increase is listed as changed, not nerfed or buffed: no cast time, cost, cooldown or range moved in WoW Forever compared with Classic Era. What changed: effect values changed, tooltip now says "Increases the duration of your Seal spells by 4 sec.", renamed from Seal Cost Reduced.

What changed for Seal Duration Increase in WoW Forever?

Effect values changed, tooltip now says "Increases the duration of your Seal spells by 4 sec.", renamed from Seal Cost Reduced. 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