Rishkar, Peema Renegade is a rare Legendary Creature — Elf Druid card from Aether Revolt Promos (PAER), collector number 122s. Current market price: — (foil $6.81), TCGplayer market prices via Scryfall.
When Rishkar enters, put a +1/+1 counter on each of up to two target creatures. Each creature you control with a counter on it has "{T}: Add {G}."