Sandwurm Convergence is a rare Enchantment card from Amonkhet Promos (PAKH), collector number 183s. Current market price: — (foil $5.93), TCGplayer market prices via Scryfall.
Creatures with flying can't attack you or planeswalkers you control. At the beginning of your end step, create a 5/5 green Wurm creature token.