Firstly, u must know secret reserve working depend on hp regen. If u watch on that video, that guy have 300+ hp regen. And his skill secret reserve is 4/4. So its acceptable if he got regen like that.
Secondly, secret reserve only working every 5 minutes. I repeat, 5 minutes!
Thirdly, DK must sacrifice to ench life steal on amulet, cape and ring if them want get maximun regen. Trust me, if DK not ench fully regen on accesory + not have buff hp regen from guild its very imposibble DK can get 150 hp regen. Secret reserve will be useless to DK.
Forthly, secre