27 cards where the block is “chk” and the text includes “splice onto arcane”

Blessed Breath (Champions of Kamigawa #1)
Candles' Glow (Champions of Kamigawa #5)
Consuming Vortex (Champions of Kamigawa #54)
Dampen Thought (Champions of Kamigawa #57)
Desperate Ritual (Champions of Kamigawa #163)
Evermind (Saviors of Kamigawa #37)
Glacial Ray (Champions of Kamigawa #168)
Goryo's Vengeance (Betrayers of Kamigawa #67)
Hideous Laughter (Champions of Kamigawa #115)
Horobi's Whisper (Betrayers of Kamigawa #70)
Hundred-Talon Strike (Betrayers of Kamigawa #8)
Into the Fray (Saviors of Kamigawa #106)
Kodama's Might (Champions of Kamigawa #224)
Lifted by Clouds (Champions of Kamigawa #73)
Overblaze (Betrayers of Kamigawa #114)
Psychic Puppetry (Champions of Kamigawa #80)
Reweave (Champions of Kamigawa #82)
Roar of Jukai (Betrayers of Kamigawa #140)
Shifting Borders (Saviors of Kamigawa #56)
Soulless Revival (Champions of Kamigawa #144)
Spiritual Visit (Saviors of Kamigawa #29)
Strange Inversion (Champions of Kamigawa #192)
Through the Breach (Champions of Kamigawa #193)
Torrent of Stone (Betrayers of Kamigawa #119)
Veil of Secrecy (Betrayers of Kamigawa #59)
Vital Surge (Betrayers of Kamigawa #150)
Wear Away (Champions of Kamigawa #250)

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