A typical magic item in BG III:
Belt of Indecipherable Synergy: When the wearer has a condition of mental anguish and then strikes an enemy with an unarmed attack while lying prone in a puddle of water, the belt will fly off and wrap the enemy in a thunderous conduit of baleful radiance for up to four rounds or fewer if the enemy succeeds a constitution saving throw with disadvantage followed by a bonus action to disengage.
