Yes, Crumble and Oxidize only hit artifacts and not enchantments, but I feel the amount of artifacts that see play now versus several years ago has gone up a lot
Supported Games: Magic: The Gathering, Pokemon, One Piece TCG, Disney Lorcana, Gundam Card Game All English and Japanese Pokemon Sets Supported Including: Base Set, Jungle, Fossil, Team Rocket, Gym Heroes, Prismatic Evolutions, Destined Rivals, Black Bolt & White Flare All English Magic: The Gathering Sets Supported Including: Urza's Destiny, Final Fantasy, Lord of the Rings, Tarkir, Edge of Eternities, Commander Sets All English Lorcana Sets Supported Including: Reign of Jafar, Fabled All English One Piece and Gundam Card Games Including: New Type Rising, Legacy of the Mastery, A Fist of Divine Speed Compatible with: PSA, BGS, CGC, SGC grading
Effects increasing or decreasing the cost apply to alternative cost (as much as possible, of course)
SDY-006 - Dark Magician