also is there an addon which helps with understanding of this?
You're probably
looking for this .
i remember reading somewhere about it like it loses efficiency over time or something like that
Unsure where you could find that.
Basically CC's are divided into different classes.
- Stun/Knock Down
- Fear
- Long cc(paralysis, tornado'd, sleep)
- Snare
- Blind
etc.
There is a 30s timer running in the background whenever you apply one of these cc's.
If you apply another cc of that same class within those 30s, the duration of the cc is reduced by 50%.
The next cc of the same class is reduced by 75%.
From this point on, the target will be immune to those cc types for the next 30s, starting from when the last cc was applied.
Example:
Class warrior.
Warrior uses Aoidos Fire, applies 4s knock down. Follows by using Kick (5s default), but it lasts only 2,5s.
Uses fear reinc ability, lasts full duration cause it's a different cc class.
The CC's diminishing on the target is global, meaning your CC's affect the diminishing, as do your friends. Such is the key to group pvp to efficiently use different CC classes in a certain rotation to optimize durations.
I hope this made it clear!