
The attack was so quick, that the Bronze Saints couldn't see it when it was performed. Regulus used his technique, Lightning Bolt, to destroy the ice that surrounded the Ship of Hope, that will be used by Athena to reach the Lost Canvas. He trained under Sagittarius Sisyphos and is considered a prodigy even amongst the Gold Saints, a formidable one-on-one combatant. He appears to have a very close relationship to Unicorn Yato.

He is the youngest of the Gold Saints and has been classified as a combat specialist. It is known as qalb al asad, from the arabic hearth of lion, this phrase is sometimes approximated as kabelaced and translates into latin as Cor Leōnis.

The word regulus means prince or little king, although it may be used to speak basilisk.

Regulus is the brightest star in the Leo Constellation and one of the brightest stars in the night sky.
