As an action, a creature that you can touch or see within 5 meters perceives everything as hilariously funny. The creature must make a Will saving throw. If the creature’s Intelligence is −3 or less, the spell has no effect on it.

On a failure, it falls prone into fits of laughter, becoming incapacitated and unable to stand up for the duration.

An affected creature can repeat the saving throw at the end of each of its turns and each time it takes damage, ending the effect on a success. The target has advantage on the saving throw if it’s triggered by damage.

Augment

You can expend 1 additional mana to target one additional creature for each additional mana expended. The creatures must be within 5 meters of each other when you target them.