Selesnya Guildmage is a uncommon Creature — Elf Wizard card from Double Masters (2XM), collector number 217. Current market price: $0.25 (foil $0.32), 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.