7 cards where the set is “sld” and (the collector number >= 477 and the collector number <= 483)

Path to Exile (Secret Lair Drop #477)
Rhystic Study (Secret Lair Drop #478)
Duress (Secret Lair Drop #479)
Seize the Day (Secret Lair Drop #480)
Krosan Grip (Secret Lair Drop #481)
Counterflux (Secret Lair Drop #482)
Thran Dynamo (Secret Lair Drop #483)

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