Ok, it's fairly obvious based on some comments from Illya in place of lindelu that there's some pretty big boosting to the damage and healing that this line does for the fully perked Disharmony MA.
It's apparent that the benefit outweighs what the Dev's were hoping to achieve (or, it went unnoticed during the though process of adding damage to perks+procs).
First off, I'd like to point out a couple of things, to tone down the fuss over it.
1. MA's using dual shens/tonfas are the ones getting the big benefit out of this dmg to proc change.
2. MA's using shens/tonfa's were never (NEVER) competitive in PVP until this change.
3. MA's are still extremely weak against alphas (healing over time does F-all vs 20k damage in 3-4 seconds)
4. MA's perked fully into disharmony have no stun resist, no root/snare resist, and thus are extremely susceptible to kiting, CC's, snares/roots and any kind of movement impairment that results in the MA being out of range
5. ANY time the MA is out of range of his opponent, the MA gets exactly ZERO benefit of disharmony.
6. Any init debuff is going to throw ALL capability to kill or survive using disharmony as a method to fulfill those actions out the window.
Hence, the point is that if for a moment, you think a real opponent is going to stand there and let the MA heal drain him over and over in order to achieve unblockable hits and heals, then you're sorely mistaken.
MA's using this capability are still hogtied by range, and therefore the setup is still useless in PVP.
Sure, it makes soloing a bit easier, or whatever, but it's not that big of a deal - so lets tone down the hullabaloo over it, and lets try to be constructive.
Here's what I think we should do:
Lets brainstorm and try to come up with a valid perkline - because, simply put, the perk actions and the benefit of the perkline the way the devs have described it, is absolute hogwash. It's garbage. No MA in PVP or PVM will ever perk it.
It's current set to do 50% proc chance to HEAL ONLY 300 HP at 220.
The entire use of the perkline has been, traditionally to ADD proc damage to the MA's repertoire - the healing was meh, it really doesn't help a lot, and MA's have a reasonable amount of heals if they want to chain it moK or whatever.
Now, the problem gets tricky, because, disharmony was one of the only SL perklines to help when an MA went ranged, and, aided greatly with healing under NR setup.
With losing damage as melee and ranged, and with a healing nerf, it's less desireable overall. [Note: As it stands currently, this perkline has, in effect, made ranged setups possible in one fell swoop - healing on 4-5 hits procs per minute has made keeping HP up under attack a possiblity - but obviously, has made PVE easy mode, except when facing hard hitters like 12man xan boss or whatever who hits for 90% of an MA's HP in one shot]
So, I suggest we try to find a comparable action/proc that benefits the MA in both setups, but doesn't overpower them.
My vote is that the proc damage stays AS IS, the proc chance stays AS IS, and the healing recieved percentage drops from 130% to 60%.
This way, the line remains still effective as a damage adding perkline, provides SOME heals, but not a significant source, and still will enable a ranged setup or NR setup by retaining some moderate healing capability.
By dropping the healed percentage to 60%, the MA will in PVM proc roughly 1000 damage, and heal 600 (not that bad of a boost), In PVP in standard setup will proc about 500-600 damage and heal for 340, and in NR will proc about 400 and heal for 240.
(Edit: the numbers are too low still for benefit in PVP (and ranged and NR), and need to be raised slightly... maybe the answer is to reduce the heal recharge on the perk action heal on perk 6 of the line?)