Fire Release: Sudden Ignition

Description
Sudden Ignition is a technique the man has developed in the environment of Cibanhujy, the World of Pheonixes. Considered Shizenjutsu, an explosion of flames is generated from a spark, from the snap of the user’s fingers. The size of the explosion ranges from the amount of chakra infused in the technique, but can be large enough to set an entire two-story home ablaze in a spontaneous eruption.

Usage
Despite the simplistic result of the technique, the process of bringing it to life requires careful skill and precision. Nearing the point of needing Hand Seals to properly guide the flow of chakra, the creator quickly succeeded in developing it in a more instantaneous manner. The process involves starting the preparation of the technique using wind-styled energy, taking control of the wind around the designated target and severely pressurizing the oxygen in that area. The next step is the swift switch to fire-styled energy in the form of snapping one’s finger to create the initial spark for the oncoming explosion. Because of the energy connection remaining between the pressurized oxygen and the spark, the formed bridge allows the process to come to fruition. From that moment, at the peak of the spark’s existence, the user rushes their chakra into the spark to travel across the bridge to combust the pressurized oxygen at extremely high temperatures. Even as the chakra is flowing through the user, the events are happening simultaneously, flowing in perfect tandem with one another.

Trivia
In a Natural Energy rich environment, this technique is essentially easier to use. If a user has the Senninka ability, this can lessen the weakness of such a condition, while those without it will generate slightly smaller explosions.

Credit to the .gif belongs to the Fullmetal Alchemist anime and its respective companies.