47 cards where (the card is available on Paper) and the flavor text contains “last words”

Awaken the Sleeper (Phyrexia: All Will Be One #119)
Bloodletter (Unhinged #50)
Bronze Bombshell (Dissension #160)
Coat of Arms (Secret Lair Drop #1712)
Defile (Warhammer 40,000 Commander #199)
Doomed Necromancer (Forgotten Realms Commander #98)
Dragon Mage (Foundations #621)
Drakuseth, Maw of Flames (Foundations #193)
Dregscape Sliver (Secret Lair Drop #631)
Erratic Apparition (Duskmourn: House of Horror #54)
Flame Sweep (Core Set 2020 #139)
Goblin Tinkerer (Mirage #180)
Gorgon's Head (Born of the Gods #158)
Hideous End (Duel Decks: Nissa vs. Ob Nixilis #52)
Homing Sliver (Secret Lair Drop #640)
Howling Mine (Tenth Edition #325)
Hunter's Blowgun (The Lost Caverns of Ixalan #255)
Hunt the Weak (Rivals of Ixalan #133)
Kami of the Hunt (Champions of Kamigawa #219)
Lhurgoyf (Commander Anthology Volume II #141)
Lightning Strike (Ixalan #149)
Mesmeric Sliver (Secret Lair Drop #620)
Monstrous Rage (Wilds of Eldraine #142)
Murder of Crows (Commander Masters #106)
Nomad Outpost (Secret Lair Drop #465)
Ohran Frostfang (Commander Masters #650)
Perilous Forays (Ravnica: City of Guilds #176)
Preposterous Proportions (Foundations #338)
Raise the Past (Foundations #300)
Rally (Ice Age #48)
Rapacious Dragon (Foundations #544)
Reassembling Skeleton (Foundations #182)
Sedge Sliver (Secret Lair Drop #642)
Shivan Dragon (Core Set 2020 #335)
Siege Behemoth (Commander Anthology #144)
Snarling Wolf (Innistrad: Crimson Vow #219)
Stonecoil Serpent (Secret Lair Drop #1226)
Throatseeker (Modern Horizons #110)
Thunderfoot Baloth (Duskmourn: House of Horror Commander #201)
Tragic Lesson (Hour of Devastation #51)
Twins of Maurer Estate (Ultimate Masters #118)
Vial of Dragonfire (Commander Masters #417)
Viashino Cutthroat (Urza's Legacy #94)
Virulent Sliver (Secret Lair Drop #659Φ)
Vodalian Mage (Fallen Empires #30b)
Volcanic Dragon (Core Set 2020 #336)
Wretched Throng (Innistrad: Crimson Vow #91)

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