Court the flame

You court the power of a nearby fire to shield you. Choose one source of nonmagical fire that is the size of a torch or larger within 5 feet of you. You gain a +2 bonus to your AC for the duration. Until this spell ends, if you would take fire damage from any source, you can use your reaction to reduce that damage to 0. If you do, the spell ends.

If you spend at least 1 minute more than 5 feet away from the source of fire you chose when you cast this spell, the spell immediately ends.

From Deep Magic, Vol 2 by Kobold Press