Dáin's Company is a rare Creature — Dwarf Warrior card from The Hobbit (HOB), collector number 212. Current market price: $1.48 (foil $2.20), TCGplayer market prices via Scryfall.
This creature has lifelink as long as you control another Dwarf. When this creature enters, look at the top four cards of your library. You may reveal a Dwarf or Equipment card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.