Magnetic Mountain [Arabian Nights] WTR173-R if Nether Shadow is in

if Nether Shadow is in your graveyard with three or more creature cards above it

Set: HeartGold & SoulSilver: Unleashed Type: Colorless Rarity: Ultra Rare Retreat cost: Colorless

Set: Sun & Moon: Base Set Type: Water Rarity: Promo Retreat cost: 2

Set: Legends Type: Legendary Land Rarity: Rare All creatures have "At the beginning of your upkeep

Target creature defending player controls can block any number of creatures this turn

Magnetic Mountain [Arabian Nights] WTR173-R if Nether Shadow is inSet: 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.