Blue Flare

Choosing a creature within range and making a range spell attack against them, you send a cold blue flame at them. This flame deals 1d8 cold damage on hit and 1d8 at the start of their turn afterwards. It takes an action to pat it out. If/when the target creature dies, it jumps to the nearest enemy target within 5ft. The castor can spend a bonus action to move it an additional 10ft.

This damage increases to 2d8 at 3rd level, 3d8 at 5, etc.