You helped defeat a manifestation of the Winter Lord, who brought his cold wrath to Paragon City.
How To Get
Frozen Fury is awarded for being on a team that defeats a Winter Lord Giant Monster (and deals at least 10% of the damage to it) during the Winter Events of 2004, 2006 or 2007. As such, it is only available during those events.
- Paragon Times article announcing the beginning of the 2004 event
- Paragon Times article announcing the end of the 2004 event