Acid water full though.
Fire blade it is then;
(Katon: Katana Kaji) - Fire Style: Blade of Fire
Rank: B
Type: Attack
Range: Short/Mid
Chakra Cost: 20
Damage Points: 40
Description: The user creates a sword of fire. When the user stabs something, the whole body/whatever ignites in flames.
Note: No sword intended
You can create it in your hand, you are resistant to it of course and it can reach mid ranged territory. You can even bend it, sticking it into the ground and erupt from behind your opponent or whatsoever.