Lagomos, Hand of Hatred is a uncommon Legendary Creature — Human Shaman card from Dominaria United (DMU), collector number 205. Current market price: $0.35 (foil $0.40), TCGplayer market prices via Scryfall.
At the beginning of combat on your turn, create a 2/1 red Elemental creature token with trample and haste. Sacrifice it at the beginning of the next end step. {T}: Search your library for a card, put it into your hand, then shuffle. Activate only if five or more creatures died this turn.