Your search for "Autarch Mammoth 153" revealed the following:
Autarch Mammoth (DFT) from Aetherdrift, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Leonardo Santanna Card Text:When this creature enters and whenever it attacks while saddled, create a 3/3 green Elephant creature token.Saddle 5 (Tap any number of...
Autarch Mammoth (Foil) (DFT) from Aetherdrift, available at 401 Games Canada. Rarity: Uncommon Finish: Foil Artist: Leonardo Santanna Card Text:When this creature enters and whenever it attacks while saddled, create a 3/3 green Elephant creature token.Saddle 5 (Tap any number...