Muramasa is a total hax. Why does he need to have Ryujin Jakka when he can spawn new powers of his own in every episode, if a need arises? Now he seems to possess a 100% reflection ability as well, making him invulnerable. How the heck does being a tapeworm type zanpakutou give such a power, eh?

I'm greatly disappointed. He should have instead used a believable trick to make Ichigo's uber attack hit the barrier. But no, instead they carelessly make him invincible. I see the filler script writers are unfortunately running out of energy already, despite this arc having such a good beginning for a filler.