Pernicious Deed [Conspiracy]Set: Conspiracy Type: Enchantment Rarity: Mythic Cost: {1}{B}{G} {X}, Sacrifice Pernicious Deed: Destroy each artifact, creature, and enchantment with converted mana cost X or less. "Yawgmoth," Freyalise whispered as she set the bomb, "now you will pay for your treachery."

Samut was right

Set: Arabian Nights Type: Sorcery Rarity: Rare Cost: {W}{W} Players play a Magic subgame

−6: You get an emblem with "Swamps you control have '{T}: Add {B}{B}{B}{B}

Barrel Down Sokenzan deals damage to target creature equal to twice the number of Mountains returned this way

among any of the creatures it's being blocked by or is blocking

Set: Saviors of Kamigawa Type: Instant — Arcane Rarity: Common Cost: {2}{R} Sweep — Return any number of Mountains you control to their owner's hand

destroy it

Set: Commander's Arsenal Type: Enchantment Rarity: Common Cost: {2}{U} Whenever an opponent casts a spell

"While most overworlders fortunately don't realize this

Set: Legends Type: World Enchantment Rarity: Rare Cost: {2}{G}{G} All lands are 1/1 creatures that are still lands

"I was promised an afterlife

Set: Kaladesh Prerelease Promos Type: Land Rarity: Rare Blooming Marsh enters the battlefield tapped unless you control two or fewer other lands