8 cards where the name includes “shapeshifter”

Escaped Shapeshifter (Tempest #62)
Jwari Shapeshifter (Worldwake #32)
Riptide Shapeshifter (Onslaught #109)
Shapeshifter (Masters Edition IV #226)
Shapeshifter's Marrow (Future Sight #58)
Unstable Shapeshifter (Tempest #100)
Vesuvan Shapeshifter (Time Spiral Remastered #97)
Volrath's Shapeshifter (Vintage Masters #101)

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