Hideous Laughter A5E

The target is overwhelmed by the absurdity of the world and is crippled by paroxysms of laughter. The target falls prone, becomes incapacitated, and cannot stand.

Until the spell ends, at the end of each of the target's turns and when it suffers damage, the target may attempt another saving throw (with advantage if triggered by damage). On a successful save, the spell ends.

Target an additional creature within 30 feet of the original for each slot level above 1st.