Hideous Laughter

Duration: 1 minute, Concentration
A creature falls into fits of laughter. They make a
Wis save or fall prone, becoming incapacitated and
unable to stand up for the duration. A creature
with an Int score of 4 or less isn't affected.
The target makes another Wis save at the end of
each of its turns, and when it takes damage. It
has advantage on the save if it's triggered by
damage.