Omnath, Locus of Rage is a mythic Legendary Creature — Elemental card from Battle for Zendikar (BFZ), collector number 217. Current market price: $1.33 (foil $12.63), TCGplayer market prices via Scryfall.
Landfall — Whenever a land you control enters, create a 5/5 red and green Elemental creature token. Whenever Omnath or another Elemental you control dies, Omnath deals 3 damage to any target.