What does THAT Piece do?!

Combos are important, but each piece has a different style and reaction. Its not all about stamina or attack, its also about weight, size, shape, and recoil.
So this thread is about that! You know any good pieces that you studied,or any favorites? Share them! But some pieces just dont go well together. So thats what this thread is about! PLEASE POST!!! And tell me if i mess up. I love constructive critism but no dissing or offensive posts!