Fire Shield

4th-Level Evocation
Casting Time: 1 action
Range: Self
Components: VSM (a bit of phosphorus or a firefly)
Duration: 10 minutes

Thin and wispy flames wreathe your body for the duration, shedding bright light in a 10-foot radius and dim light for an additional 10 feet. You can end the spell early by using an action to dismiss it.

The flames provide you with a warm shield or a chill shield, as you choose. The warm shield grants you resistance to cold damage, and the chill shield grants you resistance to fire damage.

In addition, whenever a creature within 5 feet of you hits you with a melee attack, the shield erupts with flame. The attacker takes 2d8 fire damage from a warm shield, or 2d8 cold damage from a cold shield.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage the attacker takes increases by 1d8 for each slot level above 4th.

Source: PHB 242, SRD

Changelog

Added upcasting option.