Hardened to the Core

Hardened to the Core shows the same tooltip in WoW Forever as in Classic Era, but behind it the client changed the effect type on 1 of its 2 effects. The client does not say what that changes in play. Instant cast.

Hardened to the Core tooltip: Classic Era vs WoW Forever

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

Classic Era Sep 29, 2026

Hardened to the Core

Physical school

Instant

Increases armor by 1000, but movement speed is reduced by 60%. Effect cannot be removed and lasts for 10 sec.

Increases armor by 1000. Movement speed reduced by 60%.

Forever Oct 22, 2026

Hardened to the Core

Physical school

Instant

Increases armor by 1000, but movement speed is reduced by 60%. Effect cannot be removed and lasts for 10 sec.

Increases armor by 1000. Movement speed reduced by 60%.

changed value added in Forever removed in Forever

Both tooltips read the same. The client changed only data behind them: 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
effects	[ { "amplitude": 0, "aura": 22, "auraPeriod": 0, "basePoints": 1000, "chainAmplitude": 1, "chainTargets": 0, "dieSides": 0, "effect": 6, "index": 0, "miscValue": [ 1, 0 ], "pointsPerResource": 0, "realPointsPerLevel": 0, "triggerSpell": 0, "variance": 0 }, { "amplitude": 0, "aura": 33, "auraPeriod": 0, "basePoints": -60, "chainAmplitude": 1, "chainTargets": 0, "dieSides": 0, "effect": 6, "index": 1, "miscValue": [ 0, 0 ], "pointsPerResource": 0, "realPointsPerLevel": 0, "triggerSpell": 0, "variance": 0 } ]	[ { "amplitude": 0, "aura": 674, "auraPeriod": 0, "basePoints": 1000, "chainAmplitude": 1, "chainTargets": 0, "effect": 6, "index": 0, "miscValue": [ 1, 0 ], "pointsPerResource": 0, "realPointsPerLevel": 0, "triggerSpell": 0, "variance": 0 }, { "amplitude": 0, "aura": 33, "auraPeriod": 0, "basePoints": -60, "chainAmplitude": 1, "chainTargets": 0, "effect": 6, "index": 1, "miscValue": [ 0, 0 ], "pointsPerResource": 0, "realPointsPerLevel": 0, "triggerSpell": 0, "variance": 0 } ]

Hardened to the Core changes between Forever builds

In the Oct 16, 2026 (70425) build (vs Oct 14, 2026): changed changed the effect type on 1 of its 2 effects

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

Questions about Hardened to the Core

Did Hardened to the Core change in WoW Forever?

Not on the tooltip. Hardened to the Core shows the same tooltip in WoW Forever as in Classic Era; behind it the client changed the effect type on 1 of its 2 effects.

Read from the Oct 22, 2026 build (1.60.1.70532), compared against Classic Era Sep 29, 2026 (1.15.9.70003) ·synced Oct 22, 2026 · how we read this → · report a wrong value