Fury is a murderer ability that allows the murderer to throw knives in faster time, increasing speed each time a player is killed with a throwing knife. To throw knives, hold down the left click portion of your mouse and release to throw. However, missing a shot will reset the speed streak. Fury costs 40 credits per round as murderer and it cost 3,000 credits to buy permanently.
"Makes your ability to throw knives faster each time you kill a person with a throwing knife."