Aid

2nd-Level Abjuration
Casting Time: 1 action
Range: 30 feet
Components: VSM (a tiny strip of white cloth)
Duration: 8 hours

Your spell bolsters your allies with toughness and resolve. Choose up to three creatures within range. Each target's hit point maximum and current hit points increase by 5 for the duration.
At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, a target's hit points increase by an additional 5 for each slot level above 2nd.

Source: PHB 211, SRD

Changelog