Taunter

Your mother was a hamster and your father smelt of elderberries.

Vicious Taunting

You learn the Vicious Mockery cantrip, it doesn't count against the number of cantrips you know.

When a creature fails a saving throw against a Vicious Mockery you cast, instead of disadvantage on the next attack roll it makes, it instead has disadvantage on all attack rolls against targets other than you until your next turn if it can see you. Until your next turn, whenever that creature attacks a creature other than you, it takes psychic damage equal to your charisma modifier if it can see or hear you.

Counter Retort

Whenever another creature makes a Charisma check against you, you can use your reaction and expend a use of your Bardic Inspiration to roll the Bardic Inspiration dice and reduce the Charisma check by the number rolled. You can then cast Vicious Mockery on that creature, and they subtract the number you rolled from your Bardic Inspiration dice from the saving throw.

Set the Bait

Whenever a creature fails it's saving throw against your Vicious Mockery, you can have that creature use it's reaction to move up to it's speed toward you. It chooses how it moves towards you, and it won't move in any way that obviously harmful towards it. After it moves, it can make a weapon attack against you. After this attack, combat starts and initiative is rolled for each creature except for that creature, who goes last.

Expert Insulter

You have advantage on any Charisma check that involves insulting, taunting, or similar. And you have advantage on any ability check or saving throw to respond to insulting, taunting, or similar.

Ensemble of Fools

When you cast Vicious Mockery, you can target any number of creatures you can see and hear within 120 feet of you.

When a creature fails it's saving throw against Vicious Mockery by five or more, choose another creature within your Vicious Mockery range and can be seen by the target. The creature you chose is now the caster of Vicious Mockery, and is seen as an enemy by the target until your next turn. The features from this subclass still apply.

In addition, you can now cast Vicious Mockery as a bonus action. You can also use your Bardic Inspiration feature as a part of this bonus action