Mastery, a new stat in 4.0.1, has a different effect for every spec in the game, thus it is better for some of us than others. Mastery for mutilate rogues increases our poison damage; 1 point of mastery will give you 0.0195% poison damage increase (it adds up fast). Mastery DOES work in fractions, so every single point of mastery rating increases your poison damage a lil' bit. Mastery for assassination rogues has no "cap" (because poison damage can increase infinitely, opposed to a combat rogue's main gauche, because anything over a 100% chance is wasted).
Currently, the value of mastery is unknown for assassination, but it should be pretty darn good.
Reforging & stats:
Hit cap: 7.5% raid bosses, 3% for PvP,. This will cap your special attacks and poisons. Poisons draw hit from the melee hit table now and nothing else. Expertise affects spell hit now, but not poisons. Poisons are no longer spell hit.
Expertise cap: 7.5% raid bosses, 3% for PvP, 6% for heroic dungeons (maybe).
Hit and Expertise scale at exactly the same rate. The caps is around 770 points or something without racials. Too much math. The points needed to reach the caps (but not the percentages) will raise during Pandaria.
Expertise is probably a lot more important than it used to be for assassination because blindside procs that get dodged are wasted.
6). Poison Usage
In PvE, when no utility is needed that isn't being provided (other classes can mostly keep wound poison effects), it's looking like the two poisons of choice will be Leeching and Deadly for all 3 specs.
It has been reported on the PTR that leeching is doing about 4k healing-per-second (at 90). Of course, as your damage and health increases, so will its heal.
PvP-wise, at level 90, our 4pc PvP set bonus will have some sort of snaring effect like crippling poison, so we'll have a free utility poison. Here are some things to consider, dealing with the usage of poisons:
Instant Poison: NONE LOL IT'S GONE
Mind-numbing poison: Great for casters. Shiv effect works nicely too.
Crippling poison: basically a must-have if you don't have the set bonus from the expansion that hasn't been released yet.
Wound poison: reduces healing by 25%. Also does damage. It's nice, especially if you don't want your target dotted (if you're assassination, you probably want to use deadly because its DoT is so powerful).
Deadly poison: puts a DoT on dey !@# and does instant damage after that. Very powerful actually; Phantom has had MANY people die in battlegrounds from ticking venomous wounds/deadly poison damage. It HURTS.
Leeching Poison: the heal is nice, especially the 5% with Shiv, but it's probably not going to make a huge difference. It MIGHT save you, but not too much is known. For now, we at least know that it probably isn't worth it over crippling. When the set bonus comes out, maybe.
Only melee attacks will heal you. Poisons and bleeds will not trigger leeching poison. Envenom will.
If you want to approximate how much healing will be done, look at your recount/skada damage parse, take the total from everything that isn't a poison or bleed (envenom and hemorrhage's direct strike portion are melee attacks) then divide that by 10. That is the rough (first application does no healing) amount that leeching poison could have healed you for.
Phantom was on a dummy and got healed for something like 180-850 for melee attacks (remember that weapon DPS has about doubled), upwards of 1850 for mutilate crits, and 3.3k~ for blindside crits.
Paralytic Poison: Ugh. It's really bad. Well, it's nice, but it has a 20% chance of applying. That can stack fast in some instances, but mostly, it doesn't. It needs to stack to 5 for its stun to come into effect. Otherwise, you can root (on DR) for 4 seconds with shiv. Should you manage to get to 5 stacks, they'll be stunned for 4 seconds, which is on a separate diminishing-returns table (random-stun DR) from your other stuns, so they won't reduce each other's time.
But one dispel will get rid of the entire stack. LOL. Get to 4? ABOUT TO GET LUCKY? NAH, HEALER DISPELLED IT. FALSE ALARM GUYS. That, or there becomes an unclosable gap between you and the opponent and it falls off. Or you get dismantled and it falls off. Or you get feared and it falls off. Or you get stunned and it falls off. Or it just falls off because it has a 20% chance. Or you switch targets. Or you die.
And it falls off. For the time being.
Oh, did you still want to use paralytic poison? Go right ahead! =)
Hmm... think that's everything. That being said:
STARFISH HEAAAAAAAT! GO!
Key - created Clannad, thus Fuko Ibuki, thus Starfish Heat
Valtieri - for the tips on the PPM mechanic! WHICH ISN'T HERE ANYMORE!
Aldriana - stat weighings pickpocketed from his thread in the rogue forum on EJ. (but dey gone now LOL!)
Verelyse - for making a REAL mutilate guide that people can go to instead of asking Phantom all this complicated stuff >_>
The guy/girl/peeps who made Shadowcraft ('cause Phantom sure didn't LOL)
'k go ahead and post guise ^_^
Edited by Cloaked on 10/30/2012 11:38 AM PDT