I will myself not actively test the new bosses, so we need information from you guys about them. Please list your findings below and I will progressively add them to the list.
Throne of Thunder:
Jin'rokh the Breaker
-Feint works on all his aoe abilites
-Feint + Elusiveness works on getting hit by the balls during Lightning Strike.
-Cloak of Shadows resists all damage during storm allowing you to dps from the pool longer
-Do not cloak when you've been afflicted by Ionization, it drops the AoE under your feet.
-You can cloak while Ionization is being cast to immune the application.
-Mark for Death is strong for killing adds.
-Feint doesn't seem to work unless using Elusiveness on most of horridon's primarily abilities aka double swipe.
-Cloak of shadows removes Blazing Sunlight from the Farakki Wastewalker.
-Can feint if you get stuck in a sand trap. Cloak of shadows untested.
-Cloak of shadows works on all of the Gurubashi Venom Priest's abilities.
-Cloak of shadows works on deadly plague from the drakkari warrior/champion.
-Can cloak immune the initial tick off frozen orb, as well as feint if running through it.
-Can cloak immune the initial tick off lightning nova totem as well as feint if running through it.
-Direcall Can be feinted with elusiveness, and as its physical, cloak glyph can be helpful. Final phase Dire Call REALLY hurts, so rotating feints, smoke bombs, and cloaks will really help healers.
-Dismantle (Disarm effects?) have no diminishing returns on Jalak
Council of elders
-Crippling and stuns work on Loa Beasts
-You can solo-interrupt all Sand, using Deadly Throw when Kick is on cooldown.
-Feint works on Sandstorm to reduce damage
-Cloak of Shadows does not clear the Soul Fragment
-Damage Take From Soul Fragment Can Be Cloaked And Feinted (elusiveness only)
Frost King Malakk
-Can Feint Frostbite radius damage. Can cloak, but will not prevent loss of body heat or chilled to the bone.
-Can Evasion/Feint Reckless Charge
-Can cloak/feint Discharge.
-Cloak mitigates all damage reflection during the possessed phase for the duration cloak is active.
Sul The Sandcrawler
-Can cloak sand bolt, though unreliable and not really need.
High Priestess Mar'li
-Can Stun Slow Twisted Fates. Paralytic Poison DOES work.
-Cheat Death does work on Loa Spirits.
-You are marked as Behind the boss if you stand behind his right leg. You can then ambush etc.
-Cloak of Shadows resists Stone breath damage
-Crippling on turtles is great when they first spawn to put up a slow quickly
-Bats are immune to paralytic poison ??? [Newer posts say that they can be stunned by it paralytic poison]
-Bats can be FoK'ed while in air if you shadowstep to vampiric cave bat
-You can get combo points on the humming crystals before you have pulled the boss.
-Feinting during Quake helps preventing you losing your crystal buff.
-Feint works for all aoe abilities and rampage to reduce damage
-Cloak of shadows will resist poison bomb and remove Cinders debuff, however the cinders drop below your feet.
-Marked for death does not work on the heads, they technically don't die.
-Smoke bomb is useful during hydra rage. Especially near the end of the fight when damage is high.
-Feint reduces damage from Quills
-Quills can be dodged, evasion works well.
-Cloak of Shadows will remove the Slimed debuff but nothing else
-Due to CoS removing the debuff above, you can soak pools with feint and CoS the debuff after.
-Shadowstep will get you to the eggs if you overshoot the landing
-You can use sprint to stay in melee range during Down Draft.
Durumu the Forgotten
-Feint reduces damage from the beams
-Can cloak eye sore, feint works also.
-Can cloak crimson bloom.
-Cheat Death DOES NOT work on disintegration beam. You hit the beam, you die. Nothing to stop that.
-Feint works on mind daggers.
-Can shadowstep back to the boss if you get hit by Force of Will. requires shadowstep spamming.
-Can cloak damage from Life drain, will still get stunned.
-Can cloak Burst Of Amber, Crimson Bloom, and Flash Freeze.
-Can NOT cloak dark parasite nor the later debuff Dark Plague. Optimal To Feint from 21 seconds to 15 seconds /w glyph.
-Can cloak off a Wandering Eye. Will just retarget someone else. Pointless.
-Can feint w/ or without elusiveness all mutated abilities gained by Primordius.
-When stepping over Mutagenic Pool, you can feint the damage only w/ elusiveness on.
-Using CoS can remove friendly buffs and is considered unreliable.
-Can cloak matter swap, but you still suffer the effects.
-Can cloak the debuff given by explosive slam if you get hit.
-Can feint touch of animus
-Can feint interrupting jolt, hurts a lot.
-Cloak of Shadows remove Scorched.
-Cloak of shadows and feint work on all his spells for immune and damages reduction.
-Rushing wind can be avoided by shadowstepping to Quet'zal if you use engineer glider. (Possibly goblin racial as well)
-Phase 3 you can cloak the freeze and the raid will not take damage from shatter, I'm not sure if it was the immune portion of it like on major domo seeds or if you can resist it.
---Phase 1: Ro'shak + Quet'zal---
- Can Feint/Cloak Whirling Winds. Doesn't do alot of damage, would not waste a cloak on it.
Tips: On Heroic, melee will be taking a lot of stacks of scorched, especially if you have a lot of rogues. Ideal situation is to cloak at about 3-4 stacks, and make sure you cloak just before the next application. This way, you can not only cloak the scorched application for the 4th or 5th stack respectively, but also cloak the following one.
---Phase 2: Quet'zal + Dam'ren---
- Can cloak the damage from frost spike, but will still be thrown into the air. (Does not get put on melee, but if your by a ranged, can still get hit)
- Come near the end, i'd say last 30%, just keep feint up 100% due to Ignite Cyclone + Fistsmash
-Can feint/cloak Cosmic Barrage. Chances are you as melee will not get hit if you have enough ranged alive and spread.
-Can cloak fan of flames debuff, not initital hit.
-Can cloak through flames of passion on the ground.
-Can feint tidal wive, but chances are if you dont have the xuen buff, your raid is gunna die.
-The thunderstrike in phase one can be cloaked.
-Lightning puddles on the ground that spawn adds can also be cloaked, which will prevent an add from spawning. (Phase 2/transition phase) apparently not a good idea. Save CoS for other spells.
-Static Shock can be cloaked, soaked with cheat death or feint.
-Overcharge itself canÂ´t be cloaked but itÂ´s ring which stuns can be cloaked or can be jumped over with shs or outranged
-Violent Gale Winds in P3 can be cloaked and feinted
-You can Shadowstep when rooted by overcharge.
-Glyphed sprint enables you to remain stationary with Helm of Command
-Feint does NOT reduce Violent Gale Winds damage.
-You can spawn a ball lightning by being outside of melee range
-You can solo soak a lvl 1 Static Shock with Feint/Cheat Death and any external healer cooldown
-Cloak will immune the Bouncing Bolt damage
-Soaking a Bouncing Bolt with Helm of Command will still spawn an add sometimes, its buggy
Nalak, The Storm Lord