Oliphaunt is a common Creature — Elephant card from The Hobbit Commander (HOC), collector number 199. Current market price: $0.27, TCGplayer market prices via Scryfall.
Trample Whenever this creature attacks, another target creature you control gets +2/+0 and gains trample until end of turn. Mountaincycling {1} ({1}, Discard this card: Search your library for a Mountain card, reveal it, put it into your hand, then shuffle.)