11 cards where the card is tagged “rack-effect”

Davriel, Rogue Shadowmage (War of the Spark #83)
Hellfire Mongrel (Duel Decks: Ajani vs. Nicol Bolas #48)
Invasion of Eldraine // Prickle Faeries (March of the Machine #113)
Invasion of Eldraine // Prickle Faeries (March of the Machine #113)
Lavaborn Muse (Duel Decks: Sorin vs. Tibalt #50)
Nezumi Shortfang // Stabwhisker the Odious (Champions of Kamigawa #131)
Paupers' Cage (Mirage #314)
Rackling (Nemesis #136)
Shrieking Affliction (Return to Ravnica #76)
Storm World (Masters Edition III #111)
The Rack (Time Spiral Timeshifted #113)
Wheel of Torture (Urza's Legacy #138)

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