As an action, choose an area of nonmagical flame that you can see and that fits within a 1-meter cube within 10 meters. You can extinguish the fire in that area, and you create either fireworks or smoke when you do so. If a burning creature is in cube, the burning condition ends for it.
Fireworks. The target explodes with a dazzling display of colors. Each creature in a sphere twice as big as normal centered on the target must succeed on a Fortitude saving throw or become blinded and deafened until the end of your next turn.
Smoke. Thick black smoke spreads out from the target in a sphere twice as big as normal, moving around corners. The area of the smoke is heavily obscured. The smoke persists for 1 minute or until a strong wind (at least 30 kilometers per hour) disperses it.
You can increase the smoke’s radius by 2 meters for each additional mana expended.