The problem with BREAK cards in general is they have no support and take too long to get into play. Mandibuzz is pretty much a stage 2 Pokemon without any of the benefits (the few that exist) stage 2 Pokemon have. If you're looking to add damage to everything in play, then you may want to look at Yveltal BREAK, which is also a darkness Pokemon that can add more pressure than Mandibuzz BREAK, which requires ones less deck space or you can just play Hoopa, which puts 20 damage on 2 Pokemon for one Energy and requires far less deck space (only about 2-3 cards versus 6).