I actually do this. Before the addition of Purification, yes it was a massive TP drain. Due to the addition of Purification however, it's not as draining on your TP as you may think (especially due to all the downtime in Alex).
Printable View
Not possible.
If you use ToD and Fracture in the same DK/Twin cycle, you are putting 8 GCD's between refreshes - you would need a GCD of 1.875 seconds to achieve this. Let's say I give you a 0.5 second leeway (generous) because of buff snapshotting - you still need need GCD of 1.9375.