Warrior cloak has the worst possible wanna be cool yet uncool buff in the game. Its called "perma haste". It seems cool in general however everytime u die in pvp, or get canceled, or have to switch to ANY other cloak including COI u loose your haste. I dont personally get why anyone would WANT perma-haste on thier cloak unless they are fighting the clam. That almost makes the cloak worthless to a pvp'er.