Selesnya Guildmage (ARC) from Archenemy, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Mark Zug
• Card Text:
  3G: Put a 1/1 green Saproling creature token onto the battlefield.
  3W: Creatures you control get +1/+1 until end of turn.