The Lurker Below Abilities & Tips

The Lurker Below is the second boss of Serpentshrine Cavern in Coilfang Reservoir though many guilds end up killing this boss first. In order to access the boss, he must be fished out of the "Strange Pool" where he is located. The success rate of this varies between 1-2 attempts up to fishing for 8 minutes straight.

Abilities

Whirl: Every 15-30 seconds, Lurker whirls all players in melee range for 3000-4000 damage while knocking them back. Melee classes can avoid being knocked back into the water by standing as far forward on the platform as possible without entering the water. Does not affect pets.
Geyser: Lurker targets a random player dealing 3238-3762 Frost damage as well as all players within a 10 yard radius while knocking them back 10 yards.
Spout: Every 60 seconds Lurker does a spout ability, dealing 3238-3762 Frost damage and knocks back any player cought within it for 100 yards. It turns slowly in a 360° circle either counter-clockwise or clockwise starting at the main tank. Players should avoid this by jumping in the surrounding water until it passes. This ability does not affect pets.
Submerge: Every 2 minutes Lurker will submerge under water and adds will spawn. Two per outer platform (ranged), and 3 mobs in the center (melee). They can be crowd controlled and should be taken down as quickly as possible as Lurker will emerge after one minute. Crowd controllable.
Water Bolt: If there is no one in melee range the Lurker begins to shoot water bolts at random players that deal 8750-11250 Frost damage.

General Tips

Jumping back onto the platform from the water can be a pain for a few races. Using Noggenfogger Elixir or Savory Deviate Delight can help.
Melee can run around the boss so they can continue to deal damage during a spout, just be aware they need to move out to avoid the whirl that immediately follows.
The ranged monsters that appear after submerge mobs hit relatively weak on melee but do a multishot. It is suggested that you have a healer and tank near each platform when they spawn at all times.