Shalai, Voice of Plenty is a rare Legendary Creature — Angel card from Secret Lair Drop (SLD), collector number 244. Current market price: $14.30 (foil $19.63), TCGplayer market prices via Scryfall.
Flying You, planeswalkers you control, and other creatures you control have hexproof. {4}{G}{G}: Put a +1/+1 counter on each creature you control.