Flamethrower is a firebending ability that releases a stream of fire from your hand. It is activated by holding right click (indicated on the crosshair). The stream burns every entity in front of you until you release the right click.
Level IV Edit
As with all other abilities, there are two choices for Flamethrower's level IV upgrade.
Flamestream: Extremely long-ranged, concentrated flames
This is recommended for people who use flamethrower at a longer range. The heavily concentrated flames are very powerful but it can be harder to aim.
The world will burn: Unfocused flames that create fire everywhere
This upgrade makes Flamethrower an extremely effective close-combat move. Not only do flames spread in a wide range, ensuring nearby enemies are caught, they also create fires on the ground. Caution is recommended when using this upgrade as you may burn down important structures. Also keep in mind this uses twice the chi as normal.