Hideous Laughter

Concentration - 1 Minute
Target a creature that you can see within 30 ft.
The target must succeed on a Wisdom saving
throw or fall prone, becoming incapacitated .
At the end of each of its turns, and each time it
takes damage, the target makes another Wisdom
saving throw. The target has advantage on the
saving throw if it's triggered by damage. On a
success, the spell ends.