Subterranean Tremors is a mythic Sorcery card from Conspiracy: Take the Crown (CN2), collector number 58. Current market price: $4.77 (foil $11.00), TCGplayer market prices via Scryfall.
Subterranean Tremors deals X damage to each creature without flying. If X is 4 or more, destroy all artifacts. If X is 8 or more, create an 8/8 red Lizard creature token.