26 cards where the flavor text contains “william shakespeare”

Boomerang (Masters Edition III #30)
Castle (Seventh Edition #5)
Cowardice (Ninth Edition #70)
Dark Banishing (Duel Decks Anthology: Divine vs. Demonic #50)
Darkness (Time Spiral Timeshifted #40)
Devouring Deep (Legends #50)
Early Harvest (Ninth Edition #235)
Ebon Dragon (From the Vault: Dragons #6)
Exalted Angel (Magic Online Promos #31491)
Fireslinger (Magic Online Promos #36038)
Firestorm Phoenix (Masters Edition III #99)
Gaseous Form (Fifth Edition #90)
Giant Strength (Classic Sixth Edition #181)
Jackal Pup (Magic Online Promos #36056)
Moon Sprite (Starter 2000 #42)
Naturalize (Eighth Edition #270)
Pay No Heed (Magic 2014 #27)
Pernicious Deed (Magic Online Promos #36306)
Redeem (Eighth Edition #37)
Shimian Night Stalker (Chronicles #36)
Sol Ring (Secret Lair Drop #1696)
Squall (Seventh Edition #271)
Tidings (Starter 1999 #54)
Winter Blast (Masters Edition #138)
Wolverine Pack (Fifth Edition #344)
Wrath of God (Portal #39)

This search is finished. Now the real work can begin.