Cheapest priced copy (The List): $0.49 at Card Kingdom, near mint, their price list as of .
Graceful Antelope 
Creature — Antelope · 1/4 · Rare · Odyssey · #24
Plainswalk (This creature can't be blocked as long as defending player controls a Plains.)
Whenever this creature deals combat damage to a player, you may have target land become a Plains until this creature leaves the battlefield.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper