Selesnya Guildmage is a uncommon Creature — Elf Wizard card from Ravnica: City of Guilds (RAV), collector number 252. Current market price: $0.12 (foil $0.75), TCGplayer market prices via Scryfall.
{3}{G}: Create a 1/1 green Saproling creature token. {3}{W}: Creatures you control get +1/+1 until end of turn.