Now like you did for (Katon: Housenka No Jutsu) - Fire Style: Phoenix Flower Jutsu and (Katon:Gouenka)-Fire Style:Fire Flower, you make multiple bursts of fire larger than the ones you made for these jutsu, condense them, and then manipulate them to form dragon heads.
After you make them form dragon heads, you make them attack your opponent either in the sky or on the ground. And of course, they're also used for kirin, but to use kirin, u have to wait one turn after you use this jutsu to make the clouds for kirin. u know how the whole kirin thing goes...