I would probably replace porygon for chansey if I were you. Also, there really aren't very many steel types beside aegislash in ubers, so I would switch magnezone out for something else, as you already have a pretty good answer in mega ttar. I would switch sitrus berry on slowbro for leftovers, as the first time you use belly drum, you might accidently over do the health recovery and not got your money's worth on the sitrus berry +regenerator combo. Then since porygon would be gone, I would put trick room on slowbro in place of drain punch, as he should be getting enough recovery with switching in his teammates for that good ol trick room. I would change power gem to prismatic laser.
