Magic Stone of the Ebon Home (ABC-RD-067 R) [Arcana Battle Colosseum]

If your J/ruler isn't "Gill Lapis, Conqueror of Attoractia" or "Gill Lapis, Rebel of Darkest Fires", this card enters your field rested unless you pay 300 life. Treat this card as a fire magic stone and darkness magic stone. Rest: Produce R or B. When this card enters your field -> Remove the top card of your opponent's deck from the game.