The original Rancor appeared in Urza's Legacy, in 1999.
The original art was by Kev Walker.
Fallout
Fallout
Double Masters 2022
Forgotten Realms Commander
The List
Masters 25
Explorers of Ixalan
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Duel Decks Anthology: Garruk vs. Liliana
Magic 2013
Planechase 2012