Claws of the Fire Wolf

You channel flame magic to create claws made out of roaring flames on your forearms and hands and it doubles their size. Make a melee spell attack against one creature within 5 feet of you. On a hit, the target takes 1d10 fire damage. The claws last until they are dispelled and can be summoned as a free action. 

The spell’s damage increases by 1d10 when you reach 5th level (2d10), 11th level (3d10), and 17th level (4d10).