While it's good to see Renji become a real threat again, Kubo went way too far here. Mask took down several formidable shinigami, two of which used bankai, yet Renji effortlessly overpowers the guy?
The Visored are great characters, but they don't get much love. Most of them weren't particularly effective against the Espada back in FKT, and now they're being thrown aside. You'd think they'd be useful against Quincys due to their hollow powers