No thats not what the scorch talent does, when the debuff is fully stacked on the target it gives 5% crit chance to all spells, same as winters chill and improved shadow bolt. The scorch talent also increases the critical strike chance of fireball, frostfire bolt... (cant remember the rest off the top of my head) by 3%.

So IF a lock has imp shadow bolt on the target for the %5 crit bonus my 3/3 scorch talent still gives me and aditional 3% passive crit for my fireball? me and a friend argued about it and I needed some help to discern who is right.

It's really quite simple and the wording on the talent is quite clear:
There is no indication that the first passive crit boost is in any way connected to the 5% crit debuff.

Juste a question about Torment Of the Weak utility in PvE 57/3/11 build.

I am arcane mage and in my template I put 3 points in TTW but I did not take "Slow". Is TTW a useless talent in PvE?
The slowing techniques of tanks have no effect on Bosses, so is TTW a must have in this template?

Thank you

TTW is a must for any arcane, fb and frost raiding build. Search the forums, there is a list of slows that affect bosses, which includes a warriors thunder clap, a paladins judgement of (something) and a death knights frost fever.

as mentioned, TtW is a must if you are speccing into Arcane of any kind. For PvE, as long as the tank is doing his job by putting up slowing effects (or rogues) then TtW gets activated

Abilities include Mangle (Druid), Icy Touch (DK), Judgement of the Just (Pally) and Thunder Clap (Warrior)

I am under the impression that we are/will be experiencing mana problems in Ulduar. Assuming this premise is true, which glyph out of Molten Armor, Fireball, and Mana gem should I drop for Glyph of Living Bomb? Also, I'd like to take into account that at some point I would acquire 4pcT8/8.5, losing the 2pcT7/7.5 benefit.

If you're sufficiently geared for Ulduar and assuming your raid has some form of mana regen buff (Replenishment, BoW, mana spring totem, etc.), you should have relatively few mana problems as Fireball spec. (Vezzax is a challenge, but he's a challenge to everyone with a mana pool.)

As such, you should definitely drop the Mana Gem glyph for Living Bomb. You should seize the opportunity to acquire the Tier 8 set with no reluctance about losing your Tier 7 set bonuses.

Might it be a bigger benefit to drop Glyph of Molten Armor, given the change to spirit and itemization in ulduar gear? My rationale is threat reduction as a result of a relatively minor(?) drop in crit rate. Is this a valid concern?

No, your concerns are misplaced. You should certainly be dropping Mana Gem for Living bomb. Your tanks assuming they are properly geared for the content will have no problem holding threat over you as any of the current mage specs. Even if threat becomes an issue you have invisibility and MI to use as needed.

You'd do well to review the FFB and Optimal Gear Set threads to allay your fears about mana. Dropping Molten Armor would be the most costly dps loss of the three you listed (Molten Armor, Fireball, and Mana Gem). While you may feel it is a minor loss of critical strike rating, you should consider that it will be difficult to avoid picking up spirit on Ulduar gear and Molten Armor therefore offers at least a small degree of scaling while Mana Gem offers nothing in that regard. Additionally, you should not have threat concerns if you are raiding Ulduar and even if there were, that would be a problem with your tank(s) rather than a concern with your critical strike rating.

Wouldn't the glyphed version apply the extra mana to the druid? That seems to be how it is worded to me.

The glyphed version is an effect that only pertains to the druid though, I believe.

edit: gosh, beaten to it. ><

But to also add, they made some changes to high level drinks. Less down time

Why are the huge majority of the Ensidia mages now sporting 0/50/21 specs? It was my understanding that such specs would only ever outperform 0/53/18 variants if the fight was ridiculously short, started within molten fury range, or had some other gimmick that made cold snapping IV worth it - but they just did mimiron hard, which doesn't seem like it would benefit all that much from a single cold snap.

Its fairly obvious its for hodir hard mode.

Simple question - is there any break point where master of elements becomes better than frost channeling or vice versa? Aside from my heavy nuke fireball spec, I'm building a second swiss army knife spec for any encounters where it might be useful and I have a couple of floater points.

Here's the spec right now for those who are curious:

Talent Calculator - World of Warcraft

I opted to put 2/5 imp frostbolt because frostbite procs tend to be a liability for our raids. I'm thinking of putting one more point into imp blizzard and leaning towards 3/3 MoE over frost channeling but I haven't found any posts which give a clear advantage to one over the other.

Edit: I answered my own question, for a moment I thought frost channeling was 10%, 20%, 30%. MoE wins and I need to get more sleep.

Trades are disabled in battlegrounds the last I checked. The reasons for that are fairly obvious I would think.

Is there a thread for FB/TTW spec? Call me blind, but I can't find it.

There is 1 thread for each spec but each don't have the same scope

Mmm, the FB/TTW thread just covers item sets, not rotations or anything. I guess it's just "chuck on Living Bomb, spam fireball, pyro if hot streak procs"?

Yes, unless you're the scorch-bitch and you have to add an occational scorch in the rotation as well.

I'm pretty sure this was answered in a thread somewhere but I cant find it despite some searching:

Does an HS Pyro take priority over refreshing Living Bomb or vice-versa?