I've ignored most of the Nexo Knights sets but 72004 is incredibly badass. It's got a Warhammer style power armor inside a mech! Got it for $32 on Amazon. : r/lego
LEGO MOC V. I. King - LEGO Nexo Knights 72004 Alternate MOC by grohl | Rebrickable - Build with LEGO
Mech-Ception: What I learned about Mech Construction from 72004: Tech Wizard Showdown. | The Rambling Brick