Spells /Soul Siphon

Spell · Warlock · Affliction · Physical · Ranks 1-3

Soul Siphon

Soul Siphon (Improved Drain Life in Classic Era), a Warlock Affliction ability, was changed in WoW Forever: Rank 1 tooltip value 2% in Classic Era, 12% in Forever. 3 of 3 ranks differ from Classic Era. Pick any rank to compare its tooltip with Classic Era.

Granted by the Warlock talent Soul Siphon. This is the spell it teaches; the talent's own change is on its page.

Spell · Physical · Rank 1 changed

Soul Siphon tooltip: Classic Era vs WoW Forever

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

Change rank

of 3

Classic Era Oct 27, 2026

Improved Drain Life

Rank 1 · Physical school

Increases the Health drained by your Drain Life spell by 2%.

Forever Oct 22, 2026

Soul Siphon

Physical school

Increases the damage done or health drained by your Drain Life, Drain Soul, and Wrack spells by 12% per each of your other Affliction effects active on the target, up to a maximum increase of 36%.

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	Increases the Health drained by your Drain Life spell by $s1%.	Increases the damage done or health drained by your Drain Life, Drain Soul, and Wrack spells by $s1% per each of your other Affliction effects active on the target, up to a maximum increase of ${$m1*3}%.
durationIndex	21	0
effects	[ { "amplitude": 0, "aura": 108, "auraPeriod": 0, "basePoints": 1, "chainAmplitude": 1, "chainTargets": 0, "dieSides": 1, "effect": 6, "index": 0, "miscValue": [ 8, 0 ], "pointsPerResource": 0, "realPointsPerLevel": 0, "triggerSpell": 0, "variance": 0 } ]	[ { "amplitude": 0, "aura": 4, "auraPeriod": 0, "basePoints": 12, "chainAmplitude": 1, "chainTargets": 0, "effect": 6, "index": 0, "miscValue": [ 0, 0 ], "pointsPerResource": 0, "realPointsPerLevel": 0, "triggerSpell": 0, "variance": 0 } ]
name	Improved Drain Life	Soul Siphon
subtext	Rank 1	none

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

Spell · Physical · Rank 2 changed

Improved Drain Life (Rank 2) tooltip: Classic Era vs WoW Forever

Classic Era rank 2 beside the talent's Forever spell at rank 2, changes marked.

Change rank

of 3

Classic Era Oct 27, 2026

Improved Drain Life

Rank 2 · Physical school

Increases the Health drained by your Drain Life spell by 4%.

Forever Oct 22, 2026

Soul Siphon

Physical school

Increases the damage done or health drained by your Drain Life, Drain Soul, and Wrack spells by 8% per each of your other Affliction effects active on the target, up to a maximum increase of 24%.

Shown at rank 2 of 3.

changed value added in Forever removed in Forever

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

Spell · Physical · Rank 3 changed

Improved Drain Life (Rank 3) tooltip: Classic Era vs WoW Forever

Classic Era rank 3 beside the talent's Forever spell at rank 3, changes marked.

Change rank

of 3

Classic Era Oct 27, 2026

Improved Drain Life

Rank 3 · Physical school

Increases the Health drained by your Drain Life spell by 6%.

Forever Oct 22, 2026

Soul Siphon

Physical school

Increases the damage done or health drained by your Drain Life, Drain Soul, and Wrack spells by 12% per each of your other Affliction effects active on the target, up to a maximum increase of 36%.

Shown at rank 3 of 3.

changed value added in Forever removed in Forever

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

What changed for Soul Siphon in WoW Forever

Rank 1 changed tooltip value 2% in Classic Era, 12% in Forever, tooltip text changed, renamed from Improved Drain Life, rank text Rank 1 to none
Rank 2 changed rank 2 of the talent's one WoW Forever spell; it now reads "Increases the damage done or health drained by your Drain Life, Drain Soul, and Wrack spells by 8% per each of your other Affliction effects active on the target, up to a maximum increase of 24%."
Rank 3 changed rank 3 of the talent's one WoW Forever spell; it now reads "Increases the damage done or health drained by your Drain Life, Drain Soul, and Wrack spells by 12% per each of your other Affliction effects active on the target, up to a maximum increase of 36%."

Soul Siphon changes between Forever builds

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

Related to Soul Siphon

Questions about Soul Siphon

Was Soul Siphon nerfed in WoW Forever?

Soul Siphon is listed as changed, not nerfed or buffed: no cast time, cost, cooldown or range moved in WoW Forever compared with Classic Era. The change is to its effect values. Rank 1: tooltip value 2% in Classic Era, 12% in Forever.

What changed for Soul Siphon in WoW Forever?

Rank 1: tooltip value 2% in Classic Era, 12% in Forever, tooltip text changed, renamed from Improved Drain Life, rank text Rank 1 to none. Rank 2: rank 2 of the talent's one WoW Forever spell; it now reads "Increases the damage done or health drained by your Drain Life, Drain Soul, and Wrack spells by 8% per each of your other Affliction effects active on the target, up to a maximum increase of 24%." Rank 3: rank 3 of the talent's one WoW Forever spell; it now reads "Increases the damage done or health drained by your Drain Life, Drain Soul, and Wrack spells by 12% per each of your other Affliction effects active on the target, up to a maximum increase of 36%." Each rank's Classic Era and WoW Forever tooltips are shown side by side on this page.

Which class gets Soul Siphon in WoW Forever?

Soul Siphon is a Warlock ability in WoW Forever, in the Affliction spellbook tab.

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