"I'll agree with that. You'd think his Mad Enhancement was low, seeing as we could talk to him..."

However, the Mad Enhancement of the Berserker of the Red is an irregularity. It is possible to talk to him, but it is impossible to communicate fully. He does not disobey commands as much as he simply does not understand them. Even an order given with a Command Spell will do nothing more than weigh him down; two Command Spells are required to stop him.

"The Thracian gladiator and symbol of rebellion, Spartacus... what an obdurate man."

- Volume 1, Chapter 4