55 cards where the text matches the regex /^sacrifice a(nother)? creature:/

Altar of Dementia (Modern Horizons #218)
A-Sepulcher Ghoul (Adventures in the Forgotten Realms #A-118)
Ashnod's Altar (Commander Masters #368)
Black Carriage (Homelands #42)
Blood Bairn (Commander Anthology #49)
Bloodflow Connoisseur (Double Masters 2022 #71)
Bloodthrone Vampire (Duel Decks: Zendikar vs. Eldrazi #46)
Bogardan Dragonheart (Modern Horizons #120)
Butcher of the Horde (Khans of Tarkir #168)
Carrion Feeder (Modern Horizons #81)
Cartel Aristocrat (Ravnica Remastered #170)
Cateran Overlord (Mercadian Masques #123)
Corpse Blockade (Gatecrash #60)
Dark Privilege (Visions #56)
Devouring Strossus (Invasion #101)
Devouring Swarm (Magic 2012 #91)
Dimir House Guard (Ravnica Remastered #73)
Dross Hopper (Scars of Mirrodin #60)
Ebon Praetor (Masters Edition II #89)
Everythingamajig (Unstable #147e)
Falkenrath Aristocrat (Double Masters #195)
Falkenrath Torturer (Dark Ascension #60)
Fallen Angel (Masters 25 #91)
Fanatical Devotion (Nemesis #8)
Flesh-Eater Imp (Duel Decks: Mirrodin Pure vs. New Phyrexia #58)
Gate to Phyrexia (Masters Edition IV #82)
Goblin Bombardment (Modern Horizons 2 #279)
Greater Good (Forgotten Realms Commander #160)
Grimgrin, Corpse-Born (Innistrad #214)
Immersturm Predator (Kaldheim #214)
Jerren, Corrupted Bishop // Ormendahl, the Corrupter (Innistrad: Midnight Hunt #109)
Jerren, Corrupted Bishop // Ormendahl, the Corrupter (Innistrad: Midnight Hunt #109)
Jinxed Idol (Tempest Remastered #224)
Jinxed Ring (Stronghold #137)
Life Chisel (Masters Edition III #199)
Martyr's Cause (Urza's Legacy #13)
Maw of the Obzedat (Dragon's Maze #83)
Nantuko Husk (Magic Origins #109)
Nim Shambler (Mirrodin #72)
Phyrexian Altar (Double Masters 2022 #311)
Phyrexian Ghoul (March of the Machine Commander #264)
Phyrexian Plaguelord (Commander Anthology #61)
Prossh, Skyraider of Kher (Masters 25 #214)
Rakdos, the Muscle (Outlaws of Thunder Junction #226)
Sadistic Hypnotist (Duel Decks: Izzet vs. Golgari #62)
Scarland Thrinax (Commander 2013 #209)
Sepulcher Ghoul (Adventures in the Forgotten Realms #118)
Spawning Pit (Duel Decks: Mirrodin Pure vs. New Phyrexia #69)
Thermopod (Coldsnap #100)
Vampire Aristocrat (Modern Masters 2017 #86)
Vampire Warlord (Magic 2014 #120)
Varolz, the Scar-Striped (Dragon's Maze #112)
Viscera Seer (The Lost Caverns of Ixalan Commander #213)
Vish Kal, Blood Arbiter (Double Masters #226)
Woe Strider (Commander Legends: Battle for Baldur's Gate #774)
Yahenni, Undying Partisan (The Lost Caverns of Ixalan Commander #214)

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