Pact of Negation [The List] Elder Dragon Whenever an Assassin you control

Whenever an Assassin you control deals combat damage to a player

but how do we get down

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

Set: Streets of New Capenna Commander Type: Legendary Creature — Elf Druid Rarity: Mythic Cost: {3}{W} Convoke (Your creatures can help cast this spell

Pact of Negation [The List] Elder Dragon Whenever an Assassin you controlSet: 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.