Rank 1
Reduces the cooldown of your Frost Nova spell by 2 sec.
Improved Frost Nova
Client records describe this reading. They do not confirm availability in gameplay.
Current client record
Rank 2
Reduces the cooldown of your Frost Nova spell by 4 sec.
Sourced change history
No changes in the tracked log could be matched to this record. This does not mean the ability or item has never changed.