Magnetic Mountain [Arabian Nights] SM109 Destroy it at the beginning

Destroy it at the beginning of the next end step if it didn't attack this turn

Set: Celebrations: 25th Anniversary Sealed Release Date: 2021-10-08 Celebrate Great Adventures and Good Times — with Pokémon

Set: Sun & Moon: Team Up Type: Metal Rarity: Secret Rare Retreat cost: Colorless

Set: Countdown Calendar Promos Type: Water Rarity: Promo Retreat cost: Colorless

Magnetic Mountain [Arabian Nights] SM109 Destroy it at the beginningSet: Arabian Nights Type: Enchantment Rarity: Uncommon Cost: {1}{R}{R} Blue creatures don't untap during their controllers' untap steps. At the beginning of each player's upkeep, that player may choose any number of tapped blue creatures they control and pay {4} for each creature chosen this way. If the player does, untap those creatures.