Thief of Sanity [Guilds of Ravnica]Set: Guilds of Ravnica Type: Creature Specter Rarity: Rare Cost: {1}{U}{B} Flying Whenever Thief of Sanity deals combat damage to a player, look at the top three cards of that player's library, exile one of them face down, then put the rest into their graveyard. You may look at and cast that card for as long as it remains exiled, and you may spend mana as though it were mana of any type to cast that spell.

Set: Sun & Moon: Burning Shadows Type: Grass Rarity: Ultra Rare Retreat cost: Colorless

Exile a card from your hand: Return target card from your graveyard to your hand if it shares a card type with the card exiled this way

"The good of society matters much more than the inconvenience of a few

Set: Neo Genesis 1st Edition Type: Lightning Rarity: Uncommon Retreat cost: Colorless

Set: Black & White: Dark Explorers Type: Lightning Rarity: Holo Rare Retreat cost: Colorless

Set: XY: Evolutions Type: Fire Rarity: Ultra Rare Retreat cost: Colorless

In your last hours above the earth

Each other creature you control of the chosen type enters the battlefield with an additional +1/+1 counter on it

{T}: Add {B} or {G}

Set: Sun & Moon: Unified Minds Type: Fighting Rarity: Secret Rare Retreat cost: 0

fighting the continuous pull of the void

instead destroy all creatures