Потому что:
Player Versus Player
The following adjustments only apply to PvP abilities when used in PvP.
Death Knight (Forums / Skills / Talent Calculator / Artifact Calculator / PvP Talent Calculator)
Heartstop Aura now decreases cooldown recovery rate by 20% (was 30%).
Heartstop Aura radius is now 8 yards (was 10 yards).
Necrotic Aura radius is now 12 yards (was 10 yards).
Apocalypse (Unholy) now bursts 4 Festering Wounds (was 8).