30 cards where (the card types include “basic” or the card types include “cave”)

Brass's Tunnel-Grinder // Tecutlan, the Searing Rift (The Lost Caverns of Ixalan #135)
Brass's Tunnel-Grinder // Tecutlan, the Searing Rift (The Lost Caverns of Ixalan #135)
Captivating Cave (The Lost Caverns of Ixalan #268)
Cavernous Maw (The Lost Caverns of Ixalan #270)
Dowsing Device // Geode Grotto (The Lost Caverns of Ixalan #146)
Dowsing Device // Geode Grotto (The Lost Caverns of Ixalan #146)
Echoing Deeps (The Lost Caverns of Ixalan #271)
Forest (Outlaws of Thunder Junction #285)
Forgotten Monument (The Lost Caverns of Ixalan #272)
Grasping Shadows // Shadows' Lair (The Lost Caverns of Ixalan #108)
Grasping Shadows // Shadows' Lair (The Lost Caverns of Ixalan #108)
Hidden Cataract (The Lost Caverns of Ixalan #273)
Hidden Courtyard (The Lost Caverns of Ixalan #274)
Hidden Necropolis (The Lost Caverns of Ixalan #275)
Hidden Nursery (The Lost Caverns of Ixalan #276)
Hidden Volcano (The Lost Caverns of Ixalan #277)
Island (Outlaws of Thunder Junction #279)
Mountain (Outlaws of Thunder Junction #283)
Pit of Offerings (The Lost Caverns of Ixalan #278)
Plains (Outlaws of Thunder Junction #277)
Promising Vein (The Lost Caverns of Ixalan #279)
Snow-Covered Forest (Kaldheim #284)
Snow-Covered Island (Kaldheim #278)
Snow-Covered Mountain (Kaldheim #282)
Snow-Covered Plains (Kaldheim #276)
Snow-Covered Swamp (Kaldheim #280)
Snow-Covered Wastes (Modern Horizons 3 #229)
Sunken Citadel (The Lost Caverns of Ixalan #285)
Swamp (Outlaws of Thunder Junction #281)
Tarrian's Journal // The Tomb of Aclazotz (The Lost Caverns of Ixalan #126)
Tarrian's Journal // The Tomb of Aclazotz (The Lost Caverns of Ixalan #126)
Twists and Turns // Mycoid Maze (The Lost Caverns of Ixalan #217)
Twists and Turns // Mycoid Maze (The Lost Caverns of Ixalan #217)
Volatile Fault (The Lost Caverns of Ixalan #286)
Wastes (Commander Masters #1055)

It is the moment of discovery, the triumph of the mind, and the end of these results.