Fallen Protectors LFR Guide - The Siege of Orgrimmar Vale of Eternal Sor...

Fallen Protectors.
You face 3 bosses in this fight. Each has a few different abilities which are easily managed on LFR. The big part of the fight is that when each boss hits 66 and 33 percent health they do a special ability. You dont want multiple of these happening at the same time so you need to take the bosses down to 66% one at a time, and then do the same for 33%. After that they can be aoed down together.
Now lets talk about the bosses themselves.
Rook is the first guy.
He does a frontal cone, meaning he is tanked facing away from the raid. He also throws corrupted brew around the place which will do light damage and a 50% slow if it hits you. Finally he will charge a player and do a spinning kick that does moderate damage and applies a debuff.
 At 66 and 33 he will summon 3 adds which must be killed. The first add is called a Embodied Misery. It hits its targets for 300k and puts a void zone on the floor. The next is embodied sorrow. It will cast inferno strike which does 1.2 million damage spread amongst everyone within a 8 yard radius of the target. Stack up for this one. Finally embodied gloom will throw nature damage spells around the room doing 80k damage to players in 4 yards.
Sun is the next boss. She does an ability that makes the target player do damage to anyone with 5 yards of them called Sha Sear. She also does Shadow word bane which 55k damage every 3 seconds. When it does damage it jumps to 3 additional targets. Honestly the damage from this is so low its not a massive issue. He also does calamity which does 30% of players max hp as damage and removed shadow word bane.
At 66 and 33 she will 2 big adds and some small ones. The room turns black apart from the area in the middle. Stand in the bubble in the middle and nuke down the adds quickly.
Finally we have He. He will apply a dot called Garrote to players that does light damage, gouge which will stun for 4 seconds if you face him or knock you back if you face away. The tank will want to face away. Finally he does Two kinds of poison. Instant poison makes his attacks to an additional 100k nature damage and noxius poison will drop goo on the floor which does damage to those in it.
At 66 and 33 he summons an add and casts mark of anguish. The marked player is fixated by the add. The mark does damage per second and roots the player. If the add hits you you will take increasingly high damage. The good news is you can pass the mark to another player. You get an 50% armor debuff.

This one sounds hard bit the mechanics are very lineant bar the 66 and 33% ones. Simply take each boss down to 66% individually, then down ot 33% individually and then kill them together. If they die too far apart they regain 10% hp which isnt a big deal.