5 cards where the card is tagged “cycle-usg-perpetual-aura”

Brilliant Halo (Vintage Masters #19)
Despondency (Urza's Saga #129)
Fiery Mantle (Urza's Saga #186)
Fortitude (Urza's Saga #253)
Launch (Urza's Saga #82)

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