Dagger of the Dragon's Breath

The Dagger of the Dragon's Breath comes in set 2509 Earth Dragon Defense.

Lego.com Description:
It is rumored that the Dagger of Dragon’s Breath is alive… that it holds a tiny fire dragon in its handle…one that will do its master’s bidding. Even if it’s not true, it doesn’t change the fact that this dagger is on FIRE!