False Life

D&D 2024 spell: False Life. Source: Player's Handbook (2024). level 1, school Necromancy, casting time 1 action, range Self (point), duration Instantaneous

You gain 2d4 + 4 Temporary Hit Points.

At Higher Levels

Using a Higher-Level Spell Slot You gain 5 additional Temporary Hit Points for each spell slot level above 1.

Source: Player's Handbook (2024), p. 271 - Licenses and attribution