So I was doing some "Testing" on a Striking dummy with DoTs Fracture, Demo, and ToD and it seems better to try not to keep them in your rotation. Maybe at the start Frature and Demo was out doing ToD. Now when they crit hit they did ok dmg, but no where near close enough to a crit hit on your other skills so I don't think they are worth using. I was testing them for about 2hrs.