The Gitrog, Ravenous Ride is a mythic Legendary Creature — Frog Horror Mount card from Outlaws of Thunder Junction (OTJ), collector number 352. Current market price: $7.45 (foil $10.83), TCGplayer market prices via Scryfall.
Trample, haste Whenever The Gitrog deals combat damage to a player, you may sacrifice a creature that saddled it this turn. If you do, draw X cards, then put up to X land cards from your hand onto the battlefield tapped, where X is the sacrificed creature's power. Saddle 1