Kavu
Native to Dominaria. Kavu are enormous carnivorous lizards, apparently created by Gaea to defend the Yavimaya Forest during the Phyrexian Invasion. A Kavu is usually depicted as a large creature whose sizes can vary from that of a large hound to the size of an elephant. Their most distinctive features are their long, low heads, square jaws and third pair of legs. They have thick, hoofed fingers that allow them to be equally nimble on land or in trees.
Initially native to Yavimaya, they spread beyond the forest in the branches of Magnigoth Treefolk sent to retrieve the rogue dragon Rith. Later, a large part of the forest itself was transported to the island of Urborg, giving the Kavu a strong presence there. Since their initial appearance during the Invasion, the Kavu have become an enduring part of the natural food chain and continued to survive and prosper in Rift-Era Dominaria.
(Penumbra Kavu, Thunderscape Familiar)
Read more about this topic: List Of Species In Magic: The Gathering