The World Spell is a mythic Enchantment — Saga card from Dominaria United (DMU), collector number 189. Current market price: $0.47 (foil $0.57), TCGplayer market prices via Scryfall.
Read ahead (Choose a chapter and start with that many lore counters. Add one after your draw step. Skipped chapters don't trigger. Sacrifice after III.) I, II — Look at the top seven cards of your library. You may reveal a non-Saga permanent card from among them and put it into your hand. Put the rest on the bottom of your library in a random order. III — Put up to two non-Saga permanent cards from your hand onto the battlefield.