Mercurial Pretender [Magic 2015 Prerelease Promos]Set: Magic 2015 Prerelease Promos Type: Creature Shapeshifter Rarity: Rare Cost: {4}{U} You may have Mercurial Pretender enter the battlefield as a copy of a creature you control, except it has "{2}{U}{U}: Return this creature to its owner's hand." The king went off to find himself. Imagine his terror when he succeeded.

Set: EX: Sandstorm Type: Fire Rarity: Rare Retreat cost: Colorless

Set: Black & White: Legendary Treasures Type: Grass Rarity: Holo Rare Retreat cost: Colorless

then put Vengeful Pharaoh on top of your library

add {C}{C} instead

"Death is no excuse for disobedience

Set: Sun & Moon: Celestial Storm Type: Darkness Rarity: Uncommon Retreat cost: Colorless

Set: Aether Revolt Prerelease Promos Type: Instant Rarity: Rare Cost: {1}{U}{U} Counter target spell

Set: EX: Unseen Forces Type: Colorless Rarity: Rare Retreat cost: Colorless

Sacrifice Whirlpool Warrior: Each player shuffles the cards from their hand into their library

Set: Black & White: Dragons Exalted Type: Psychic Rarity: Rare Retreat cost: 0

spells and abilities you control that would add colored mana instead add that much white mana

" —Troll chant