Blazing Boots

Flames leap from your boots. Your speed increases (+20 ft) and you don't provoke opportunity attacks. Whenever you move within 5ft of a creature/object that isn’t being worn/carried, it takes 1d6. A creature/object takes this damage 1/x per turn.

Higher Lvl. If cast with a 4th lvl or higher slot, your speed increases by 5 ft and you get another 1d6 fire dmg for each spell slot above 3rd.