23 cards where the color identity ≤ GU and the rarity is equal to common and the text includes “landfall”

Adventuring Gear (Zendikar #195)
Calcite Snapper (Worldwake #25)
Canopy Baloth (Zendikar Rising #182)
Grazing Gladehart (Duel Decks: Zendikar vs. Eldrazi #14)
Groundswell (Duel Decks: Zendikar vs. Eldrazi #15)
Hedron Rover (Worldwake #125)
Hedron Scrabbler (Zendikar #204)
Ior Ruin Expedition (Commander Legends #398)
Jaddi Offshoot (Iconic Masters #171)
Kazandu Nectarpot (Zendikar Rising #190)
Khalni Heart Expedition (Commander Masters #899)
Mysteries of the Deep (Worldwake #33)
Shoal Serpent (Zendikar #65)
Skyclave Squid (Zendikar Rising #82)
Snapping Creeper (Worldwake #112)
Snapping Gnarlid (Battle for Zendikar #190)
Sporemound (Commander Legends #437)
Stone-Seeder Hierophant (Ravnica: City of Guilds #184)
Territorial Baloth (Battle for Zendikar #196)
Territorial Scythecat (Zendikar Rising #213)
Wave-Wing Elemental (Battle for Zendikar #88)
Werewolf Lightning Mage (Unfinity Sticker Sheets #48)
Windrider Eel (Archenemy: Nicol Bolas #30)

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