Update - Thursday, March 22, 2012

Elementalist
Aura of Restoration (PvP): split for PvP; reduced healing to 200...400% of the Energy cost.
Stone Sheath: increased recharge to 15 seconds; reduced armor bonus to 1...30.

Mesmer
Illusion of Haste (PvP): split for PvP; increased recharge to 8 seconds; removed the following functionality: "removes Crippled condition."
Illusion of Pain (PvP): split for PvP; added the following functionality: "Ends if reapplied."

Monk
Healing Breeze: increased recharge to 5 seconds.
Peace and Harmony: decreased recharge to 10 seconds.

Guild Wars Wiki notes
Illusion of Pain (PvP) is 15 energy.
EDIT: ^23th update reverted its cost back to 10.

RIP Illusion of Pain

I don't understand most of those changes, maybe something to do with GvG, which I don't play.

Illusion of Pain was nerfed quite hard.

mostly splits nerfed

Maybe PnH will see some play again in GvG. Maybe.

The previous illusion of pain was a pain.

I always though of that skill as a finisher you use when the enemy's HP is low enough, so they won't get the HP unless they use hex removal. But they were reapplying it to keep the damage going.

That's no finisher.

I hope they use it as a finisher now instead (if they even use it).

But was the nerf to 15 energy needed? Maybe to be in line with Conjure Nightmare, but considering the high risk already involved...

Yeah, that's a bit weird. But don't forget that it also deals damage per second on top of the degen, and that they can interrupt most healing skills.

Nobody will use IOP anymore, obviously. It got Smiter's Boned.

AoR and SS was a good nerf, it was fairly powerful.

IoP was pretty imba in certain formats, but yeah this is nearly a smiter's boon. Degen will never be good for a finisher and as a DoT it is now conjure nightmare with slightly less damage, much shorter duration, and heals the enemy if removed early.

Thanks ANet! The only reason I did PvP was a build I created using Illusion of Pain as a double cover hex for more annoying hexes.

This proves I was a viable threat to the sanity of PvP!

This patch was primarily aimed at GvG.

Illusion of Pain was a 1 skill wonder. You could take it and a full bar of non-damage utility and still kill stuff quickly if it didn't have heals/removal. So strong considering it wasn't even an elite. It was used primarily on split where there would be less or no hex removal.

Illusion of Haste is still a good run skill, however the build that would want it ^ just got nerfed hard. Now illusion split mesmers need to learn to dodge pin down when running through the base.

Stone Sheath was way too strong defensively and I don't think it was hit hard enough. The +armor is the real problem with the skill and that hardly took a hit.

Aura of Resto was slightly overbuffed in the patch awhile ago. Eles could essentially negate any pressure coming from a single enemy. This was most problematic on the Mind Blast ele, who could literally spam his fast recharge spells forever without requiring any context or timing when using those spells.

Healing Breeze is another spell that points to the popular Mind Blast template in GvG. As an infinite energy engine, it could spam HB over a large number of players with no real downside.

Only thing I'm confused about in this update is PnH buff. Back to the dartboard, Anet?

I'm guessing, you're one of those users who kept re-applying it?

The PaH buff is odd. Considering the best non-elite hex removal which removes multiple hexes is 12s recharge but 1s cast and requires you have recharging divine skills for it to function, I thought 15s was the perfect balance. Although, the risk is greater as an elite hex removal as you lose WoH or your other bar-pusher. Maybe this was warranted.

Healing Breeze recharge decrease will make killing the monks in FoW a little easier, especially the Priest.

That's the only way to play it, unless you're griefing/bad.

-CA Mesmers can be effectively snared and killed now... great for collapses since they're quite the nuisance...

-MB Eles have to focus healing more on themselves now, with this, could the WC sin possibly be forced to bring a self-heal...?

-Lol PnH. Such a fun skill.

-Cheers to Stone Sheath, it really needed a nerf.

....And they didn't touch shockwave...Come on, a little bit longer recharge please. All they did with the nerf to stone sheath is make Shockwave all the more popular...

... and I'd be having fun too if it weren't for those meddling ANet employees and their Test Krewe too!

This update is primarily focussed on GvG, namely countering the countless split teams.

As usual, A-Net went over the top again and killed some skills (IoP and IoH).

Let me comment a little bit on the changes :

Aura of Restoration (PvP): split for PvP; reduced healing to 200...400% of the Energy cost.
Ok with this, it needed a bit of tone down.
Stone Sheath: increased recharge to 15 seconds; reduced armor bonus to 1...30.
Agree with this, might be that the nerf needed to be stronger because the skill is still to OP.

Illusion of Haste (PvP): split for PvP; increased recharge to 8 seconds; removed the following functionality: "removes Crippled condition."
hmm, ok this one will never see use again
Illusion of Pain (PvP): split for PvP; added the following functionality: "Ends if reapplied."
And again, a skill completely wiped from everyone's build.
Not sure on how they could have toned it down better, but this way you are just killing the skill.

Healing Breeze: increased recharge to 5 seconds.
Good
Peace and Harmony: decreased recharge to 10 seconds.
The skill still isn't good enough to warrant bringing it

I think a nerf was needed for the overpowered mesmer split build.
But ...
This update is the same as removing the keyskills from the build.
If you do it like this, well then just remove the skill all together.

Ele changes were quite expected.

Mes ones are nerfing splitting in GvG, but the Monk changes are a bit odd.