19 cards where the artist name includes “tianhua x”

Crow of Dark Tidings (Shadows over Innistrad #105)
Dinosaur Hunter (Rivals of Ixalan #67)
District Guide (Guilds of Ravnica #128)
Drag Under (Eldritch Moon #57)
Forest (Zendikar Rising #280)
Forest (Battle for Zendikar #274)
Forest // Forest (Zendikar Rising Art Series #21)
Forest // Forest (Zendikar Rising Art Series #21)
Island (Battle for Zendikar #259a)
Island (Zendikar Rising #271)
Island // Island (Zendikar Rising Art Series #12)
Island // Island (Zendikar Rising Art Series #12)
Kothophed, Soul Hoarder (Magic Origins Promos #104)
Mountain (Battle for Zendikar #269)
Nephalia Moondrakes (Shadows over Innistrad #75)
Plains (Battle for Zendikar #254)
Reanimated (Jumpstart Front Cards #31)
Swamp (Battle for Zendikar #264a)
Tamiyo, Field Researcher (Eldritch Moon #190)
Tamiyo, Field Researcher Emblem (Eldritch Moon Tokens #10)
Wall of Mist (Guilds of Ravnica #58)

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