Ember Swallower is a rare Creature — Elemental card from Theros Promos (PTHS), collector number 120★. Current market price: — (foil $0.26), TCGplayer market prices via Scryfall.
{5}{R}{R}: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.) When this creature becomes monstrous, each player sacrifices three lands of their choice.