Elvish Reclaimer is a rare Creature — Elf Warrior card from Core Set 2020 Promos (PM20), collector number 169p. Current market price: $7.03 (foil $12.93), TCGplayer market prices via Scryfall.
This creature gets +2/+2 as long as there are three or more land cards in your graveyard. {2}, {T}, Sacrifice a land: Search your library for a land card, put it onto the battlefield tapped, then shuffle.