False Life

1st-Level Necromancy Spell (Sorcerer, Wizard)

Casting Time: Action
Range: Self
Components: V, S, M (a drop of alcohol)
Duration: Instantaneous

You gain 2d4 + 4

Temporary Hit Points are granted by certain effects and act as a buffer against losing real Hit Points. See also Damage and Healing.

.

At Higher Levels: You gain 5 additional

Temporary Hit Points are granted by certain effects and act as a buffer against losing real Hit Points. See also Damage and Healing.

for each spell slot level above 1.

Source: Player's Handbook, p. 271