19 cards where the name includes “tunnel”

Access Tunnel (Outlaws of Thunder Junction Commander #270)
Aether Tunnel (Core Set 2019 #43)
Brass's Tunnel-Grinder // Tecutlan, the Searing Rift (The Lost Caverns of Ixalan #135)
Brass's Tunnel-Grinder // Tecutlan, the Searing Rift (The Lost Caverns of Ixalan #135)
Butch DeLoria, Tunnel Snake (Fallout #43)
Escape Tunnel (Murders at Karlov Manor #261)
Goblin Tunneler (Duel Decks: Merfolk vs. Goblins #49)
Ice Tunnel (Kaldheim #262)
Merfolk Tunnel-Guide (Alchemy: Ixalan #25)
Ticket Booth // Tunnel of Hate (Duskmourn: House of Horror #158)
Top-Secret Tunnel (Unstable #207)
Tunnel (Fourth Edition #227)
Tunneler Wurm (Judgment #135)
Tunnel Ignus (Scars of Mirrodin #105)
Tunneling Geopede (Battle for Zendikar #158)
Tunnel of Love (Unfinity #234a)
Tunnel Surveyor (Duskmourn: House of Horror #76)
Tunnel Tipster (Murders at Karlov Manor #180)
Tunnel Vision (Ravnica: City of Guilds #72)
Underwater Tunnel // Slimy Aquarium (Duskmourn: House of Horror #79)

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