Rashok Guide - Heroic / Normal - Aberrus the Shadowed Crucible - WoW 10.1 Raid Guide

Mechanics

• Pull the boss toward a corner of the room and have the raid stay grouped up.
• Whenever a random player gets a mark and circle around them, they need to quickly move to the edge of the room near the boss, because the boss will then jump on them and drop a big lava vortex thing where that player is. You want to drop these toward the edge of the room because they occasionally send out these little lava waves in all directions, and keeping the middle of the room clear makes things way easier later on. Just don’t ever drop a new vortex on an existing one or else…you’re dead. Also, the raid takes damage whenever a new vortex is spawned, and this damage goes up a lot every time, so definitely watch your health on the later ones.
• After each vortex spawn, make sure to move the boss a little bit away from the vortex and face him toward the raid. You want him facing toward the raid because most of the time the next mechanic after the vortex slam thing is this big circle on the ground that he places directly in front of him that everyone in the raid needs to help soak. It does a bunch of split damage, but more importantly, the boss effectively gains energy for every player missing from the soak, and if he gains too much extra energy it can throw the entire flow of the fight off.
• The boss usually follows this soak cast up with the tank combo. He does three casts on the current tank, and any of these casts can either be Flaming Slash or Earthen Crush. Flaming Slash does a ton of fire damage and increases damage taken from itself. And Earthen Crush does a ton of physical damage and increases damage taken from itself. Basically, this means the offtank needs to taunt if the current tank is about to get hit by the same ability for the second time. So if he starts with two of the same in a row, taunt during the second cast. If he starts with two different casts, taunt during the third cast. Also, both tanks should use a big defensive cooldown for this combo.
• Every once in a while, the boss spawns a bunch of these little circles around him. These circles need to be soaked or else they blow up on the raid, ideally you only have one player in each circle because soaking one applies a short dot, but too many people soaking is WAY better than missing a soak, so everyone should look to help. And when the boss gets really high on energy, he casts a super-wide cone in a random direction, which of course needs to be dodged.
• Right after this big frontal, the boss is about to hit full energy and wipe the raid, so the tank needs to immediately drag the boss into this circle in the middle of the room, which will stun the boss and start draining his energy. While he’s being drained, a bunch of random swirlies spawn and the raid takes a lot of pulsing damage. So try to group up to make healing easier and keep dodging swirlies. On heroic, the pulsing raid damage increases over time, so you may want to use healing cooldowns toward the end of the drain.
• Once the boss is back to 0 energy, he starts his regular mechanics again, so bring him toward a new corner of the room away from the old lava vortexes and rinse and repeat.
• You can only drain the boss three times before the circle in the middle of the room stops working, so you have to kill the boss before he hits full energy the fourth go-round.