Of the B-list DD villains, he is likely the biggest must have.
Daredevil's rogues gallery is divided into 3 tiers:
A-list villains: Kingpin, Bullseye, Elektra when she was at odds with DD, Typhoid Mary, the Hand.
All the A-list villains are must haves.
B-list villains: Gladiator, Mr. Fear...