28 cards where (the text includes “{t}” and the text includes “card” and the text includes “library” and the text includes “graveyard”) and the card types include “artifact” and it’s legal in Commander and the color identity ≤ GUW

Aetherworks Marvel (Kaladesh #193)
Bow of Nylea (Theros #153)
Canal Dredger (Conspiracy #55)
Candles of Leng (Time Spiral #250)
Cellar Door (Innistrad #218)
Cogwork Archivist (Strixhaven: School of Mages #254)
Conjurer's Bauble (Fifth Dawn #112)
Gate to the Afterlife (Amonkhet #228)
Grinning Totem (Time Spiral Timeshifted #110)
Horizon Spellbomb (Scars of Mirrodin #165)
Jester's Scepter (Coldsnap #137)
Junktroller (Ravnica Remastered #262)
Knowledge Vault (Masters Edition III #198)
Lembas (The Lord of the Rings: Tales of Middle-earth #243)
Lodestone Bauble (Masters Edition II #213)
Midnight Clock (Outlaws of Thunder Junction Commander #100)
Orazca Puzzle-Door (The Lost Caverns of Ixalan #68)
Perpetual Timepiece (Outlaws of Thunder Junction Commander #263)
Phyrexian Archivist (March of the Machine #262)
Realmbreaker, the Invasion Tree (March of the Machine #263)
Soulcipher Board // Cipherbound Spirit (Innistrad: Crimson Vow #79)
Soulcipher Board // Cipherbound Spirit (Innistrad: Crimson Vow #79)
The Stone Brain (The Brothers' War #247)
Thought Dissector (Darksteel #152)
Thran Tome (Weatherlight #160)
Vessel of Endless Rest (Ultimate Masters #235)
Vexing Arcanix (Eighth Edition #319)
Wand of Denial (Classic Sixth Edition #317)
Wand of Vertebrae (Guilds of Ravnica #242)

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