*focus to make ash*In this jutsu, you needn't focus too much fire chakra into fire itself. Let it come out of you in its lesser-developed state of ash. Then, keep control of your fire chakra within the ash. And then, release it all in one big burst, causing the ash to combust.
ok wat should we do nowYou've got it ^.^
The only other A-rank fire jutsus is one that requires Toad Oil, and one that's basically the same thing as the fire jutsu you just learned.