Teferi's Response [Invasion] XY156 when a Special Summoned monster

when a Special Summoned monster activates its effect while you have a "Shaddoll" card in your hand: You can negate the activation

Set: Planechase Planes Type: Plane — Lorwyn Rarity: Common Whenever a land enters the battlefield

Set: Expedition: Base Set Type: Fire Rarity: Holo Rare Retreat cost: Colorless

) During either player's turn

and only the dead and vile remain

Teferi's Response [Invasion] XY156 when a Special Summoned monsterSet: Invasion Type: Instant Rarity: Rare Cost: {1}{U} Counter target spell or ability an opponent controls that targets a land you control. If a permanent's ability is countered this way, destroy that permanent. Draw two cards.