Glowspore Shaman is a uncommon Creature — Elf Shaman card from Guilds of Ravnica (GRN), collector number 173. Current market price: $0.29 (foil $0.52), TCGplayer market prices via Scryfall.
When this creature enters, mill three cards. You may put a land card from your graveyard on top of your library. (To mill a card, put the top card of your library into your graveyard.)