Mul Daya Channelers is a rare Creature — Elf Druid Shaman card from Rise of the Eldrazi (ROE), collector number 198. Current market price: $0.79 (foil $3.04), TCGplayer market prices via Scryfall.
Play with the top card of your library revealed. As long as the top card of your library is a creature card, this creature gets +3/+3. As long as the top card of your library is a land card, this creature has "{T}: Add two mana of any one color."