Rising Phoenix Blast Technique

Joushou Ootori no Jutsu (Rising Phoenix Blast Technique)
Ninjutsu (Katon) [Fire]
Rank: 8 (B-Class);
Range: Long (30 ft. + 15 ft./2 extra chakra spent);
Area: 20-ft. tall, 5-ft. wide cylinder from the ground;
Duration: Instantaneous;
Saving Throws: Dex half;
Chakra Resistance: Yes;
Chakra Cost: 7.

Upon completing this technique, the user places his hand on the ground and sends his Chakra traveling through it. Once it reaches the target, it will erupt in a devastating column of fire and deal 50 points of fire damage to any creature caught in the blast, damage can be halved by a successful Dex save.

Empower
The user may increase the damage by 10 at the expenses of 2 Chakra points, up to a max of 30.