Nek'zali the Soulcoiler
Tank-swap ritual boss: run the dispel out, kill adds before the Soulcoil Well, soak the pyres; the cast pattern reshuffles after the intermission.
The Venomous Abyss is the current tier: eight bosses under Zul'Aman's serpent temple. Start with the boss you are progressing - video and rankings links carry each encounter until its written playbook lands. The Season 2 dungeon rotation and timers are below, with the Season 1 encounter library after them.
Tank-swap ritual boss: run the dispel out, kill adds before the Soulcoil Well, soak the pyres; the cast pattern reshuffles after the intermission.
Keep the two golems apart or they barely take damage; in the intermission, collide with exactly four toxin stacks to neutralize it.
Tortollan council: interrupt the flames, and feed a Disgusting Fish to a possessed councillor to break the controlling spirit's hold - each can be fed only once.
When he drinks from the fountains, kill the crawling venoms before they reach the cavity; spread the froth and carry infections out.
Wind-push single-target: assigned players pop cysts as each gale starts to counter the knockback, and the raid bursts during the damage-amp window.
Everyone's venom stacks toward a lethal cap until the devour soak consumes it; tanks rotate the soaks in spawn order.
Break the shield to stop the ramp, free mind-controlled players, and kill both bosses within moments of each other - the survivor gains 500% damage.
Burn the exposed Heart during its double-damage windows, keep the eggs out of venom, and survive the platforms shattering in the final phase.
The Tidebound Grotto's lair boss is a single-phase soak-management fight: Chilling Frost players place Frost Orbs deliberately so soakers can eat them on a schedule, murloc adds must die before the central Alluring Bubble empowers them, and the Unending Tides intermission funnels the raid into the one lane without a whirlpool. Her Abyssal Rain stacks 5 percent frost damage per cast, so a slow kill becomes an enrage.
New in Patch 12.1 - three bosses
Midnight - sat out Season 1
Longest timer in the pool
Midnight - sat out Season 1
Midnight - sat out Season 1
Some sites still show a stale 31:00 - the live timer is 30:00
Midnight - sat out Season 1
Battle for Azeroth
Some sites still show a stale 33:00 - the live timer is 32:00
Battle for Azeroth
Dragonflight
Tightest timer in the pool
Single-target tank-swap check with rotating melee soaks.
Add waves spawn on a timer - cleave them while sustaining the boss.
Single-target burn with positional soaks between phases.
Two-boss fight - keep both bosses in range for constant cleave.
Waves of Vanguard adds must be AoE'd down before they overwhelm.
Alternates single-target burn phases with priority add swaps.
Single-target damage race through heavy movement phases.
Single-boss fungal encounter with rot, spores, and priority add control.
Priority adds interrupt otherwise single-target phases.
Final single-target burn under a hard soft-enrage.