dread spike is so useless that I forgot it existed.
Dread spike is a skill that was meant to increase survivability , so you could definitely trade this in for it.

The specifics of the skill can be changed, like adding an enmity down to account for the loss of Elusive (and trading Elusive for it was only an example and a personal opinion)

If you wanted TP, you could add a TP increase on Jump much like Full Thrust but increasing DPS was not the goal for this skill.