Patch Notes Mesmer Edition - Jan 3rd, 2013

[Raye]

• Shatter skills now share a global 0.25 second recharge, to prevent multiple shatter effects triggering on the same illusion.
  
• Shattered Strength: This trait now grants 1 stack of might per illusion shattered.

Source

I'm not sure if it's something that I'd notice in regular play, I haven't played my mesmer yet. Hopefully it doesn't affect my build too much =(

[Xycury]

the only exploit was that stacking might per shatter then passing it off to party members. Double digit stacks too.

Probably good that they nerfed it, though I played too much by myself to use such tactic.