Help on spell death and decay

Current upkeeper: Oya
Casting time    : 10
Spell cost      : 1
Spell type      : offensive (area)
Spell words     : mors vitae
Affecting stats : Int, Wis, Lvl, Masteries
Affecting skills: Arcane power, Energy focus
Affecting spells: Death and decay
This is one of the foulest and deadliest spells ever created by the masters of
the Dark Arts. It will unleash the powers of the nether realms in a wave that
will destroy all life around the caster.

Deafen < List > Death knell