Yes. The Shindai-Rengoku boss spawns at level 2000 and actively flaunts his massive health pool. On top of being a literal tank, he is also fond of chasing you aggressively around the battlefield, using some of the devastating moves discussed in this guide. The worst part is that after reaching half his health, he activates his mode and makes matters even worse. All in all, it’s safe to say you should be trying to defeat Shindai-Rengoku with a well-synergized party or you’ll get steamrolled.