This spellhandler is not perfect. While it cannot be broken via combat, and has no immunity, it still interrupts. I welcome anyone to help me fix the interrupt problem, though i will continue to figure it out on my own.
A new crowd control effect referred to as ‘Slow’ is introduced:
Targets affected by Slow have their movement speed reduced, both in and out of combat.
Slow effects do not have an associated immunity timer after the effect ends. A target can be continuously slowed.
Slow stacks on top of any root or snare effect currently on the target - in a sense strengthening the power of the current root or snare.
Slows do not break on damage and do not have an associated immunity timer after its effect ends.
The strength of the slow lasts its full duration. It does not weaken as the remaining duration lowers.
Targets that are root or snare immune can still be slowed.
Slow effects do not interrupt on their own.