Azure's Flash Fire

You focus your hands into two L shapes and hurl a small bolt of red light at a target. The target takes [roll]1d8[/roll] fire damage, and an additional [roll]1d4[/roll] after the target is hit with any fire damage. The target can make a strength saving throw and must a DC equal to the total damage last taken by the secondary effect of this spell + 10 (maximum of 25) on a failed save the effect continues. This continues for 1 minute. More than one instance of the secondary effect cannot be used on top of a previous one.

At higher levels this spells base damage increases to [roll]3d8[/roll] at 5th, [roll]5d8[/roll] at 10th level, [roll]7d8[/roll], and [roll]9d8[/roll] at 15th level. The additional fire damage increases by 2d4 at the same benchmarks.