38 cards where the card is tagged “free-cast-self”

Abolish (Duel Decks: Elspeth vs. Tezzeret #29)
Allosaurus Rider (Duel Decks Anthology: Elves vs. Goblins #2)
Blazing Shoal (Betrayers of Kamigawa #96)
Bounty of the Hunt (Masters Edition II #154)
Cave-In (Mercadian Masques #180)
Commandeer (Commander Masters #80)
Contagion (Masters Edition #64)
Disrupting Shoal (Ultimate Masters #51)
Endurance (Modern Horizons 2 #157)
Flameshot (Prophecy #90)
Foil (Ultimate Masters #55)
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)
Force of Will (Dominaria Remastered #50)
Fury (Modern Horizons 2 #126)
Fury of the Horde (Duel Decks: Speed vs. Cunning #30)
Grief (Modern Horizons 2 #87)
March of Burgeoning Life (Kamigawa: Neon Dynasty #201)
Misdirection (Duel Decks: Merfolk vs. Goblins #15)
Nourishing Shoal (Ultimate Masters #175)
Outbreak (Prophecy #71)
Pyrokinesis (Eternal Masters #143)
Reverent Mantra (Mercadian Masques #44)
Scars of the Veteran (Masters Edition II #34)
Shining Shoal (Betrayers of Kamigawa #21)
Sickening Shoal (Betrayers of Kamigawa #82)
Snag (Prophecy #124)
Snapback (Time Spiral Remastered #87)
Solitude (Modern Horizons 2 #32)
Soul Spike (Coldsnap #70)
Spinning Darkness (Weatherlight #81)
Subtlety (Modern Horizons 2 #67)
Sunscour (Coldsnap #19)
Unmask (Mercadian Masques #168)
Vine Dryad (Mercadian Masques #284)

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