Pact of Negation [The List] Elder Dragon Creature tokens you control are

Creature tokens you control are Squirrels in addition to their other creature types

Set: EX: Legend Maker Type: Psychic Rarity: Ultra Rare Retreat cost: Colorless

except the token isn't legendary

Whenever an Assassin you control deals combat damage to a player

Keeper of Secrets deals damage equal to that spell's mana value to target opponent

Pact of Negation [The List] Elder Dragon Creature tokens you control areSet: 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.