This boss is a call-back to the first Boss: Keep adds away from the middle

We'll rotate the boss through these 3 shaded areas, because periodically, he will activate the 2 closest fountains (circled) and spawn adds from them.

 

Activating a fountain 3 times in a row is super bad (like 3 strikes in baseball)

The boss will cast Imbibe to activate the 2 nearest fountains. In this position, it's the shadow fountain and the fire fountain.

Adds will spawn from the fountains and try to get to the pool.

We will (probably) want to move the boss to the fire slimes to cleave them dead. They can be CC'd.

Ranged or AOE aficionados should kill the purple slimes ASAP.

We want to focus kill the fire slimes one at a time because they explode for raid damage when they die.

When the purple guys die they will spawn swirlies on the ground that need to be dodged.

As we finish off the last of the slimes we want to move the boss to the next region.

We will probably want to be closer to the blood fountain for the next Imbibe

Ranged / AOE bros kill the Purple. Cleave the red slime on boss.

Remember to dodge purple swirls when the blobs die

When the Red Blob Dies it will spawn more smaller blobs. Kill em

 

Note that Red Blobs cannot be CC'd

Each Slime color also has an additional debuff mechanic to deal with.

Fire: Exploding Infection is a dispellable debuff that explodes when removed. It puts an arrow on your head and fire effects

Run away and get dispelled

Boom

Void: Players will get a healing absorb and spawn more swirlies to dodge

Beg your healers to heal you and dodge the swirls 

Blood: Puts a healing absorb / soak on a player. Everyone should stack in it.

The player with the soak on them can't be healed, they can only siphon health from other players, so you must soak with them to remove the debuff. Watch your own health when inside and if you get low then dip out.

OTHER BULLSHIT:

Plague Froth will give you a cross effect. When it expires it will shoot out green waves.

OTHER BULLSHIT:

Plague Froth will give you a cross effect. When it expires it will shoot out green waves.

 

Try to position so you don't hit other people.

OTHER BULLSHIT:

On Heroic, Malignant Catalyst comes by every once in a while and does raid damage and (possibly) makes green circles to soak.

OTHER BULLSHIT:

The tank swap is a simple stacking debuff, the tanks should trade it whenever it expires off the other tank. You should be trading as soon as it comes out, getting 2 stacks is probably lethal.