aramis erak
Legend
Name me a build in 5th edition that brings absolutely nothing worth while to a party.
One with a Charisma of 8–, who constantly attempts to bed every NPC, with or without consent, because they've chosen "polyamorous pervert sex addict" as their personality line, and thus is constantly getting the party in trouble, and his Bond is "Save my own skin" or "2 cute to die"...
Or the bard who uses ventriloquism to make it sound like the fighter just called out the guy they're wanting to negotiate with, because he's taken "Prankster"...
Or any of a dozen other similar troublemakers.
Their net benefit is severely negative. Both for the party as characters in the gameworld, and as the players at the table.