Blazing Cannonball Technique

Kaenhoudan no Jutsu (Blazing Cannonball Technique)
Ninjutsu (Katon) [Fire]
Rank: 10 (B-Class);
Range: Long (30 ft. + 15 ft./2 levels);
Area: 40-ft. radius burst;
Duration: Instantaneous;
Saving Throws: Dex half;
Chakra Resistance: Yes;
Chakra Cost: 7.

Using this technique, the user releases a devastating elemental attack at his opponents. Any creature and unattended object in the area of effect suffers 50 points of fire damage, halved with a successful Dex save.

Empower
The user may spend 5 points of chakra to increase the damage by 10 die, up to a max of 30.