High Prophet Barim
High Prophet Barim is the third encounter in The Lost City of Tol'Vir. This is a two phase encounter.
In phase one (the light phase), he will use Fifty Lashings, which increases the damage Barim causes for his next 10 attacks. Tanks and healers need to be mindful of this ability and use cooldowns or extra healing as necessary.
Barim also uses a damage over time disease called Plague of Ages. This disease deals a bit of damage, but will jump to nearby party members if not dispelled. Stay spread out and, If possible, remove it to prevent damaging everyone in the group.
Barim will often cast Heaven's Fury. This ability spawns a pillar of light at a random player's location. It will deal continuous, heavy damage to anyone that stands in it, so move away from it as soon as it appears.
A final mechanic in phase one is Blaze of the Heavens. This spawns a phoenix that pulses a constant AoE, so players will wish to stay away from it. Eventually, the phoenix will die, turning into an egg and being reborn again after a while. The Blaze can either be kited or nuked down by ranged classes.
At 50% health, Barim will cast Repentance on the group. This ability stuns everyone and pulls them ontop of Barim. At the end of the cast, he knocks all players away, and the second phase (dark phase) begins. It is important to stay away from Barim himself during this phase; he is completely immune to damage and is surrounded by an AoE field called Hallowed Ground.
Phase two is host to its own phoenix: Harbinger of Darkness. Unlike the Blaze of the Heavens, the Harbinger does not suffer continual damage and will need to be picked up by the tank immediately. The Harbiner will occasionally use Soul Sever on a group member, which spawns a soul fragment in the player's likeness. This fragment then moves towards the Harbinger, giving it a damage buff should one reach it. It's important that the tank keep the phoenix moving during this phase, and for all DPS to either burn down the Harbinger as fast as possible, or to take out the soul fragments when they spawn.
One final note on phase two: the Harbinger will hit random players for around 7500 damage. This happens frequently enough that healers need to be alert. Additionally, when the Harbinger dies, it deals around 30,000 damage to everyone, and releases Barim from Repentance, resulting in phase one starting over from 50% until Barim is defeated.