Avenger of Zendikar is a mythic Creature — Elemental card from Outlaws of Thunder Junction Commander (OTC), collector number 187. Current market price: $0.78, TCGplayer market prices via Scryfall.
When this creature enters, create a 0/1 green Plant creature token for each land you control. Landfall — Whenever a land you control enters, you may put a +1/+1 counter on each Plant creature you control.