Afterburn

Choose a set of straight lines, the total length of which may accumulate up to 60 feet and the width of which is 5 feet, originating from you. You teleport to the end of the last chosen line. Any creature within the chosen path must make a dexterity saving throw or suffer 4d8 points of fire damage, half on a success. A creature may only be affected by this spell once per Round.

For each level of spell slot used to cast this spell beyond 3rd, the damage increases by 2d8 and the length increases by 10 feet. If you cast this spell at 5th level, your base walking speed is doubled until the end of your turn. If you cast this spell at 7th level, you also ignore Fire resistance or immunity.