Guild Wars 2

5/6 Krait runes (6th on my breather):

+193 condition damage
+15% bleed duration
5% chance to cause 10s of bleeding when hit (5s cooldown)
(+100 power while underwater)

The bleed proc does a lot to improve the usefulness of the condition damage I already have. When I buy a new set of armor (I got carrion because of the low cost) I’ll likely change my spec a bit.

Leper.7853:

I did some testing last night and found that in fact multiple +Might duration runes DO stack, however all they do is maintain at least one stack. The rate that stacks fall off looks constant and unchanging, despite the total duration for Might itself lasting longer.

Boons and Conditions that stack on intensity, stack but every stack group has it’s own duration, that’s why you see stacks falling even though the duration still has a long way to go.

For instance lets say you add a Might stack (3) for 20seconds.
10seconds pass and you add another Might Stack of (1) for 30seconds.

You will see your might duration show 30seconds with (4) stacks but internally your first might stack has 10seconds left and your second might stack 30seconds left.

10 more seconds pass and you only see a stack of (1) for 20seconds.

_
Also may I suggest that instead of going for multiple +20% Might duration bonuses,you should go for the following:
2x Superior Rune of Water: +25 healing +15% boon duration
2x Superior Rune of Monk: +25 healing +15% boon duration
2x Superior Rune of Strength: +25 Power +20% Might Duration

It will benefit all your boons, you exchange 40% might duration for 30% to all boons duration(including might,so basically 10% loss for 30% gain to all the rest)