The Dagger of the Dragon's Breath is a weapon in some 2011 LEGO Ninjago: Masters of Spinjitzu sets. It is a small dagger with a black hilt and a fiery orange blade, although it is unclear if the latter is engulfed in flames or actually made of fire. According to the official description, the flames are rumoured to come from a tiny fire dragon living within the dagger.
This weapon is very similar to the Dragon's Fire. It also bears a strong resemblance to a torch.
It is rumoured 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!