28 cards where the lore includes “tawnos”

Ankh of Mishra (Vintage Masters #263)
Ashnod's Altar (Commander Masters #368)
Burnished Hart (The Brothers' War Retro Artifacts #71)
Candelabra of Tawnos (Masters Edition IV #187)
Clay Revenant (The Brothers' War #118)
Clay Statue (Masters Edition IV #189)
Dutiful Replicator (Jumpstart 2022 #48)
Fateful Handoff (The Brothers' War #94)
Foundry Inspector (The Brothers' War Retro Artifacts #79)
Goblin Firebomb (The Brothers' War #235)
Journeyer's Kite (The Brothers' War Retro Artifacts #88)
Mantis Engine (Urza's Destiny #133)
Sculpting Steel (The Brothers' War Retro Artifacts #113)
Sol Ring (Commander Masters #703)
Swiftgear Drake (The Brothers' War #251)
Tawnos (Vanguard Series #405)
Tawnos Endures (Alchemy: The Brothers' War #3)
Tawnos's Coffin (Masters Edition #169)
Tawnos, Solemn Survivor (The Brothers' War Commander #3)
Tawnos's Tinkering (The Brothers' War #191)
Tawnos's Wand (Masters Edition IV #231)
Tawnos's Weaponry (Masters Edition IV #232)
Tawnos, the Toymaker (The Brothers' War #222)
Tawnos, Urza's Apprentice (Commander 2018 #45)
The Stasis Coffin (The Brothers' War #245)
Triskelion (Fourth Edition #354)
Urza's Armor (Urza's Saga #313)
Urza's Incubator (Dominaria Remastered #239)

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