Abj
Armor of Agathys
1st-level Abjuration · XPHB, p. 243
Casting Time1 bonus
RangeSelf
ComponentsV, S, M (a shard of blue glass)
Duration1 hour
Damage Typecold
Description
Protective magical frost surrounds you. You gain 5 Temporary Hit Points. If a creature hits you with a melee attack roll before the spell ends, the creature takes 5 Cold damage. The spell ends early if you have no Temporary Hit Points.
At Higher Levels
Using a Higher-Level Spell Slot: The Temporary Hit Points and the Cold damage both increase by 5 for each spell slot level above 1.