26 cards where the card types include “world”

Arboria (Dominaria Remastered #149)
Bazaar of Wonders (Mirage #55)
Caverns of Despair (Legends #136)
Chaosphere (Mirage #164)
Concordant Crossroads (Double Masters 2022 #141)
Elkin Lair (Visions #78)
Eye of Singularity (Visions #4)
Field of Dreams (Legends #55)
Forsaken Wastes (Mirage #125)
Gravity Sphere (Legends #151)
Hall of Gemstone (Mirage #221)
In the Eye of Chaos (Masters Edition IV #51)
Koskun Falls (Homelands #55)
Land's Edge (Chronicles #52)
Living Plane (Masters Edition III #127)
Mystic Decree (Masters Edition IV #53)
Nether Void (Masters Edition III #73)
Null Chamber (Mirage #31)
Pillar Tombs of Aku (Visions #67)
Revelation (Chronicles #68)
Serra Aviary (Masters Edition IV #26)
Storm World (Masters Edition III #111)
Teferi's Realm (Visions #44)
The Abyss (Masters Edition III #77)
Tombstone Stairwell (Mirage #149)
Winter's Night (Masters Edition II #200)

The message was clear to Sorin—time to search for something else.