What power would a Bard of Blood have? [Destruction through bond?]

If there’s a Class that’d destroy through the power of friendship, that’d be them. Intense devotion towards those around them, but also the possibility of tearing apart their bonds with other people or people’s bonds with others. Could easily be a devoted friend doing their best to tear down your enemies because they don’t want you to be in danger, as they could be a manipulative asshole isolating people from others or manipulating them into accepting them as part of their team for some higher purpose.