|Zone (Patch)||Skyshrine: The Underdepths (LU63)|
|Level||99▲▲▲ Tier 10 Heroic , (Approx. HP: 41.500.000)|
|Location||after ancient bridge, above Ikatiar|
At the beginning of the fight you'll receive an incurrable curse named "Touch of the Awakened." During the fight, two Fiery Statues will spawn on each side and in back of him, you will need to click these to absorb the buff before it converts into the betrayal state, at which point you will soon die.
Two Golums will spawn during the battle. If they get near Belkreiz, he will "absorb" them, increasing his power. With them gone, he casts Spontaneous Combustion (incurable curse; same as used by Valagas). This is apparently a death sentence for the target because it activates the betrayal effect on termination regardless of whether Touch of the Awakened is on them at the time. Do not fight him without an expendable tank.
The best strategy is to start over by the left column, then cure the first curse you get at the beginning of the battle (everyone has to click the column and cure their own curse,) then move to the tunnel you ran in from (just to the mouth) and fight him there and burn him down. It takes some time for the curse to convert, so burn him down even if you get cursed again and if you have enough dps he'll die before the second curse lands.