Your search for "Indomitable Ancients 121" revealed the following:
Indomitable Ancients (TDC) from Tarkir: Dragonstorm Commander, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Pete Venters
Indomitable Ancients (Foil) (MOR) from Morningtide, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Pete Venters