Green mana's removal effects usually target enchantment cards and artifacts, and green's creature removal relies on having its own creatures
In Modern, where most decks use Fetch Lands to fulfill their mana requirements, Wrenn and Six is incredible in securing your land drops and giving you access to all the colors you need
As for what Oblivion would do....a Gatherer search told me that things with the word 'oblivion' in its name in Magic tended to remove or destroy things
In addition to these full-art basic lands, you can find regular basic lands in The Lost Caverns of Ixalan Bundle and Bundle: Gift Edition
Frequently, Cavern of Souls shows up in tribal decks, such as Humans, Spirits, and Elementals, but that hasnt stopped Amulet Titan and other decks from playing it to force through specific high-value creatures
Jung Park's work is something you can't quickly put down