11 cards where (the card is available on Paper) and the artist name includes “jubilee”

Command Tower (Secret Lair Drop #758)
Forest (Secret Lair Drop #1472)
Island (Secret Lair Drop #1469)
Mountain (Secret Lair Drop #1471)
Plains (Secret Lair Drop #1468)
Snow-Covered Forest (Secret Lair Drop #329)
Snow-Covered Island (Secret Lair Drop #326)
Snow-Covered Mountain (Secret Lair Drop #328)
Snow-Covered Plains (Secret Lair Drop #325)
Snow-Covered Swamp (Secret Lair Drop #327)
Swamp (Secret Lair Drop #1470)

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