Prestack
Might and proceed to the boss. The boss has several mechanics. The most annoying one is that he is teleporting to a random location of the arena every 10%.
The Voice has a couple of well telegraphed attacks, that can be easily sidestepped. In addition to that he also targets random players and throws a big ball (big AoE attack) at them, which bounces back and force. This can be negated with
Aegis.
The tiles of the arena can be revealed with the
Light of Deldrimor skill. Spam this skill all the time and you won't have a problem with disappearing tiles.
At 60% and 20%
The Voice teleports to the middle, becoming invulnerable and you have to keep away
Spectral Flames from him.
Spectral Flames make the tiles disappear under them. Use
Light of Deldrimor skill to make them invulnerable to
Spectral Flames. If a
Spectral Flame manages to reach
The Voice, he casts a huge AoE that damages you. During this phase the group should focus on killing
Shades as they can easily cause a wipe.
After the 20% invulnerability he doesn't teleport away and you can nuke him. After defeating The Voice the fractal is finished.