Aspect of Mutilation
On Two-Handed, it says this:
“If you fail to Eviscerate an enemy, you still apply 60.0% [40.0–60.0]% of its Bleeding damage for 3 seconds. (Warlock Only)”
Say your skill damage is 100. You would expect to get:
100 × 10 [Eviscerate DoT Multi] × 60% [Aspect] = 600 extra damage, applied as a 3s DoT, 100 damage per tick.
But what it actually does is:
100 × 10 ÷ 24 [12s DoT ticks] × 60% = 25
So you only get 25 damage per tick for 3 seconds, for a total of 150 extra damage.
Some skills have a higher or lower Eviscerate DoT multiplier, and they can also have different success rates. If the rate is 5%, this aspect triggers 95% of the time. That means the actual damage increase is only around 142.5%[x], plus some extra help for the eviscerate direct damage.
Edit: Average DPS increase is even less than 142.5%, only about 46.5%.