Selesnya Guildmage is a uncommon Creature — Elf Wizard card from The List (PLST), collector number GK1-119. Current market price: $0.20, 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.