Fireball Technique

Hidama no Jutsu (Fireball Technique)
Ninjutsu (Katon) [Fire]
Rank: 7 (B-Class);
Range: Medium (20 ft. + 10 ft./2 levels);
Area: 30-ft. radius burst;
Duration: Instantaneous;
Saving Throws: Reflex half;
Chakra Resistance: Yes;
Chakra Cost: 7.

Upon completing this technique, the user sends a large ball of blazing Chakra towards his target, likely with the intention of blowing it to bits. The fireball explodes with a large and loud sonic boom, dealing 50 points of fire damage. The fire ball will set fire to combustibles and damage unattended objects in the area. Should the user attempt to send it through a narrow passage, he must "hit" the opening with a ranged touch attack, lest he see the fireball explode prematurely at the opening of the passage.

Empower
The user may increase the damage dealt by this technique by 10 up to a maximum of 80 points of fire damage at the cost of 7 points of chakra per 10 damage, or up to 30 per level total.