The Entombed Sentinels are the second or fourth boss of The Venomous Abyss raid, depending on your route. 

This is a two-target fight with a special intermission when the bosses reach 100 energy. In this fight, the raid is split into two groups, with players interacting with different mechanics depending on the sentinel they're currently fighting. Tanks will want to tank the bosses at least 40 yards apart to prevent Ula'tek's Dominance from reducing their damage taken by 99%. 

Phase 1

• Split the raid in half and keep the bosses 40+ yds apart.  Position at top left and right corners.

• Green Sentinel (Breath):

  • Spawns an add that pulses raid-wide damage and, if you don't kill it quickly enough, will spawn another add.

  • Orb droplets (small green circles) that need to be soaked.

  • Tank: Empowering Slam (physical damage)

  • Heroic: Avoid spikes aimed at boss.

• Red Sentinel (Blood):

  • Blighted Blood: dot on random raid members - dispel/mitigate (on Heroic if not dispelled it drops a puddle)

  • Unstable Miasma on a player - group soak near the edge of the platform (on Heroic everyone drops little puddles .. drop at edge)

  • Tank: Bloodvenom Injection: physical attack with a brief dot.