Pact of Negation [The List]Set: The List Type: Instant Rarity: Rare Cost: {0} Counter target spell. At the beginning of your next upkeep, pay {3}{U}{U}. If you don't, you lose the game. Those who expect betrayal at every turn are seldom disappointed.

Set: Portal Second Age Type: Creature — Bear Rarity: Rare Cost: {2}{G}{G} Whenever Razorclaw Bear becomes blocked

Set: Mystery Booster Playtest Cards Type: Creature — Sliver Rarity: Rare Cost: {3}{W}{W} All Slivers have banding

Noncreature spells cost {1} more to cast

Set: Double Masters Type: Legendary Creature — Angel Horror Rarity: Mythic Cost: {G}{W}{U}{B} Flying

"Whether we like it or not

Collectors’ Edition Type: Sorcery Rarity: Rare Cost: {2}{R} Each player discards their hand

Set: World Championship Decks 1999 Type: Artifact Creature — Masticore — Rarity: Rare Cost: {4} At the beginning of your upkeep

Set: Eldritch Moon Promos Type: Legendary Creature — Eldrazi Rarity: Mythic Cost: {13} This spell costs {1} less to cast for each card type among cards in your graveyard

Set: Happy Holidays Type: Creature — Human Knight Rarity: Mythic Cost: {3}{U} // {2}{U} Whenever Decorated Knight attacks

or third turns of the game

Set: Stronghold Type: Legendary Creature — Sliver Rarity: Rare Cost: {W}{U}{B}{R}{G} {2}: Create a 1/1 colorless Sliver creature token

When Treachery enters the battlefield