Armor of Agathys

1st-level, Abjuration

• Casting time: 1 Bonus Action
• Range: Self
• Components: V, S, M (a shard of blue glass)
• Duration: 1 hour

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.

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.

Classes: Paladin (Oath of Conquest); Warlock

Source: Player's Handbook (2024) p. 243