Regulus

He is the Nemean Lion residing in the Longinus Regulus Nemea and Sairoarg's Pawn, i t's a lion from Hercules 12 twelve labour. It m aterialised itself after its previous host died killing the culprit who killed its host. It was reincarnated by Sairoarg into a devil through the use of 7 Pawns and can fuse with it's master to attain Balance Breaker. It is extremely loyal to Sairoarg.