The Grimoire is operated by, Dice Bard has everything you need to play 5e... as long as all you need to play 5e is dice.

Calm Emotions 2nd level enchantment

Casting Time: 1 action

Range: 60 feet

Components: V, S

Duration: Concentration, up to 1 minute

Tags: bard cleric level2 enchantment

You attempt to suppress strong emotions in a group of people. Each humanoid in a 20-foot-radius sphere centered on a point you choose within range must make a Charisma saving throw; a creature can choose to fail this saving throw if it wishes. If a creature fails its saving throw, choose one of the following two effects. You can suppress any effect causing a target to be charmed or frightened. When this spell ends, any suppressed effect resumes, provided that its duration has not expired in the meantime.

Alternatively, you can make a target indifferent about creatures of your choice that it is hostile toward. This indifference ends if the target is attacked or harmed by a spell or if it witnesses any of its friends being harmed. When the spell ends, the creature becomes hostile again, unless the DM rules otherwise.

You can find more information on this spell in: PHB.221