24 cards where the card is tagged “off-turn-casting-matters”

Alela, Cunning Conqueror (Wilds of Eldraine Commander #3)
Arena Trickster (Theros Beyond Death #126)
Blightwing Bandit (Wilds of Eldraine Commander #13)
Breath of the Sleepless (Crimson Vow Commander #11)
Brineborn Cutthroat (Core Set 2020 #50)
Dream Spoilers (Wilds of Eldraine #85)
Dreamspoiler Witches (Modern Masters #81)
Dreamstalker Manticore (Theros Beyond Death #131)
Faerie Tauntings (Lorwyn #112)
Final-Word Phantom (Murders at Karlov Manor Commander #22)
Force of Despair (Modern Horizons #92)
Force of Negation (Double Masters 2022 #50)
Force of Rage (Modern Horizons #124)
Force of Vigor (Modern Horizons #164)
Force of Virtue (Modern Horizons #10)
Gandalf of the Secret Fire (Tales of Middle-earth Commander #507)
Geyser Drake (Outlaws of Thunder Junction #51)
Glademuse (Commander 2020 #60)
Glen Elendra Pranksters (Lorwyn #67)
Mischievous Chimera (Theros Beyond Death #223)
Naiad of Hidden Coves (Theros Beyond Death #56)
Nymris, Oona's Trickster (Commander Legends #288)
Stinging Lionfish (Theros Beyond Death #69)
Wavebreak Hippocamp (Theros Beyond Death #80)

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