13 cards where the illustration contains “valley-of-the-spi...”

Bitter Revelation (Khans of Tarkir #65)
Crucible of the Spirit Dragon (Fate Reforged #167)
Crux of Fate (Fate Reforged #65)
Dragon (Mythic Edition Tokens #W2)
Formless Nurturing (Ugin's Fate #129)
Haven of the Spirit Dragon (Dragons of Tarkir #249)
Nexus of Fate (Core Set 2019 #306)
Sarkhan's Triumph (Dragons of Tarkir #154)
Sarkhan Unbroken (Dragons of Tarkir #230)
Scion of Ugin (Dragons of Tarkir #1)
The Grand Tour (Mystery Booster Playtest Cards 2019 #30)
Tomb of the Spirit Dragon (Khans of Tarkir #245)
Ugin's Nexus (Khans of Tarkir #227)

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