Ruins of Mazzatun

Barrage of Stone

All: She flings boulders at everyone. Block it or be knocked down.

Leap

All: She leaps and lands in a circle that knocks back anyone inside. Stay out of it.

Mucous Spray

Tank: A multi-hit poison spit barrage at whoever she is targeting. Block it to reduce the damage.

Bog Rush

All: An Argonian Shellbinder spawns and provokes Chudan toward a marked player (a spreading area effect follows their feet). The marked player runs so Chudan digs straight toward, and through, the Shellbinder, killing it. Once she starts digging she commits to a straight line, so line yourself up and dodge roll or sprint clear the instant she goes underground.

Monstrous Blitz

All: An unrelenting charge. Anyone can block it by stepping into his path.

Roar

All: A large roar with a knockback and a heavy damage-over-time effect. Non-tanks especially should stay clear.

Archers

Dps: They use ranged attacks including an instantly lethal Take Aim channel. Interrupt or kill the channeling archer immediately.

Trolls

Tank: One troll joins each phase. Control it and keep it off the group.

Dps: Kill the troll quickly, preferably before it lands its ground-stomp effects repeatedly.

Stomp

All: He occasionally stomps, firing rocks around the arena perimeter for moderate damage plus a knockback if you are caught. Stay aware of the edges when this happens.

Swamp Spice Phase

All: At 75%, 50%, and 25% he goes immune (the aroma of Swamp Spice invades the arena) and adds swarm in, drawn by the smell. A geyser activates on the side of the arena opposite wherever the Spice lands. One player runs through the green Spice area to pick it up, then carries it (slowed the whole way) to the active geyser to cleanse it and end the phase. Killing an Argonian Wrangler frees its chained wamasu, which helps fight off adds if the group is overwhelmed.

Heavy Attack

All: A dual-wield heavy attack with a large knockback. Everyone blocks it.

Hist Pool

All: She throws a glob of Amber that creates a pool empowering any add that steps in it. A player can run onto it to clear it, taking a mild, easily healed damage-over-time effect. Watch this closely on Hard Mode, where more adds mean more chances for one to get empowered.

Siphoning Totem

Dps: A totem that rapidly drains Magicka and Stamina and increasingly drains Health. Kill it as fast as possible or the group runs dry.

Amber Projection (about 75% and 50%)

Dps: She summons an amber shade of Mighty Chudan at about 75% and of Xal-Nur at about 50%, going invulnerable until the shade dies. On Hard Mode, clear the shade's adds before the shade itself, since a spawning Siphoning Totem or a Hist Hallucination hitting mid-add-wave can end the fight quickly.

Hist Hallucinations

All: She targets a player with thrown Amber, replacing their entire ability bar with a single skill and making the room's statues glow. One of the glowing statues (an Avatar of the Hist) is the real Empowered Tree-Minder Totem, visible only to the hallucinating player, and they must find and destroy it to break free. Non-hallucinating players see which totem is real and can either use a synergy to reveal it (Normal only; disabled on Hard Mode) or have the tank pull the boss toward the correct one so the affected player can follow the group.

Execute Phase (about 25%)

All: Vines erupt in an alternating conical pattern with gaps between them. She can still drop Siphoning Totems and cause Hallucinations during this, so keep handling those on top of watching the ground.

More Adds (Hard Mode)

Dps: She summons adds in greater numbers throughout, and the Hallucination-reveal synergy is disabled. Agree on a callout system with your group in advance for identifying the real totem without it.