Yule bat
From Twilight Heroes Wiki
yule bat
Plural: Unknown
This is a bat that is literally on fire. Like, totally on fire. It's so on fire that you can't hold onto it, unlike all those other flaming bats you tote around. But trust me, if you try to hold this bat, yule be sorry.
Comes from December 2013 Item of the Month
Miscellaneous Item
Item cannot be auto-sold
Combat Usable
Only one item of this type can be used per combat.
How Obtained
Use yule box
Use yule shed in combat
Use yule shed as a resting tool
You rush your opponent like a bat out of holidays and beat them for X damage + X damage.
All good things must come to an end; the bat burns away, leaving a single glowing ember that faintly resembles an eye.
You got an item: yule eye