Popularly known as full art cards, these highly popular picks depict a Pokmon in all its glory, with the art covering the entire card
If the mythics have to work hard to support box prices, theyre not going to see a deep loss of price, and its not going to last too long, either
Sure, your opponent might have ten beasts in their green deck, but Callous Oppressor would still be able to steal their four goblins, three elves, and two other creatures that weren't beasts
You can then choose to cast them without paying their mana costs, and yes, you can also choose to stack all of the nonland spells in whatever manner you prefer
Its a pretty good way to either give yourself more Creatures, or simply get rid of problematic Enchantments and Artifacts