Blinding Light

When you use this technique, you focus your firebending on your focusing sigil launching a beam of energy. You launch the concentrated beam of energy and periodically cause explosions on the way. For every 20ft that the beam travels you roll a Strength Check. On a success, you continue your beam but on a fail, the beam explodes at that distance and takes effect. Wherever the beam ends, the beam lets out a blinding flash of light. Any creature that has a direct line of sight with the point of explosion that isn’t more than 100 ft away must make a Constitution Saving Throw. On a fail, they are blinded. The creatures can repeat the saving throw at the start of each of their turns. At Mastered level, you have advantage on the Strength Checks.