# 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](3-Mechanics/CLI/rules/variant-rules/temporary-hit-points-xphb.md). 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](3-Mechanics/CLI/rules/variant-rules/temporary-hit-points-xphb.md). **Using a Higher-Level Spell Slot.** The [Temporary Hit Points](3-Mechanics/CLI/rules/variant-rules/temporary-hit-points-xphb.md) and the Cold damage both increase by 5 for each spell slot level above 1. **Classes**: [Warlock](3-Mechanics/CLI/lists/list-spells-classes-warlock.md) *Source: Player's Handbook (2024) p. 243*