Horizon Seeker is a common Creature — Human Warrior card from Kaldheim (KHM), collector number 175. Current market price: $0.21 (foil $0.27), TCGplayer market prices via Scryfall.
Boast — {1}{G}: Search your library for a basic land card, reveal it, put it into your hand, then shuffle. (Activate only if this creature attacked this turn and only once each turn.)