Question, what sword will Zoro take next? Since forging black blades is a thing now and swords can raise in rank as result (i hope i understood that right), he should have 3 great grade swords and make them all into black blades, improving their rank to supreme grade swords (again, is this how it works?) Shusui doesent count, it already is made into a black blade and peaked. Wado Ichimoji obviously, Enma as well. But he needs to get rid of the Kitetsu and get one of two, either the other Kitetsu or Ame no Habakiri. So which one would suit him more