Basically they get a passive that if they run for X amount of seconds they become invisible. Its a constant effect that lasts as long as they have stamina to keep on running. If they stop running for a fraction of a second they lose invisibility.
The counters to this is obviously stun or immobilize them before the cloak happens, apply DOTs to them, and any other anti-cloak countermeasures. There is also the fact they must stop running if they wish to actually attack or do anything useful. So its not like the cloak when they can initiate a sneak attack, but they do get a damage boost when leaving invisibility thanks to another passive.
JamieAubrey wrote: »About time, fed up with NBs trying to gank me, fail and cloak away
Well since its going to cost stamina and Vampires are magic based, most will have 10k stam at most and will run out sooner than a MagBlade spamming cloak with 25-30k Magic
Also you need to be sprinting for X amount of time so will take a few seconds before you vanish