Zameck Guildmage is a uncommon Creature — Elf Wizard card from Gatecrash Promos (PGTC), collector number 209. Current market price: $1.25, TCGplayer market prices via Scryfall.
{G}{U}: This turn, each creature you control enters with an additional +1/+1 counter on it. {G}{U}, Remove a +1/+1 counter from a creature you control: Draw a card.