Crescent Unit Argentum is an enemy from Crisis Core -Final Fantasy VII-.
Argentum is a pretty strong foe, having access to attacks such as Death Missile for Instant Death, Chain Thrust for multiple physical damage, and Graviga for halving Zack's HP. However, despite this they can be fought similarly to all other Crescent Units by exposing their low Spirit stat. Tri-Thundaga can easily defeat this foe.
Argentum means "silver" in Latin.