Your search for "Coppercoat Vanguard 101" revealed the following:
Coppercoat Vanguard (Etched) (MAT) from March of the Machine: The Aftermath, available at 401 Games Canada. Rarity: Uncommon Finish: Foil Artist: Bruno Biazotto Card Text:Each other Human you control gets +1/+0 and has ward 1.
Coppercoat Vanguard - Showcase (Halo Foil) (MAT) from March of the Machine: The Aftermath, available at 401 Games Canada. Rarity: Uncommon Finish: Foil Artist: Steve Ellis Card Text:Each other Human you control gets +1/+0 and has ward 1.