Mardu Ascendancy [Khans of Tarkir Prerelease Promos] SM195 Counter target spell if its

Counter target spell if its converted mana cost is X

When Spellstutter Sprite enters the battlefield

Set: Arabian Nights Type: Artifact Rarity: Rare Cost: {10} {X}

Set: Neo Discovery 1st Edition Type: Fighting Rarity: Holo Rare Retreat cost: Colorless

When Emrakul

Mardu Ascendancy [Khans of Tarkir Prerelease Promos] SM195 Counter target spell if itsSet: Khans of Tarkir Prerelease Promos Type: Enchantment Rarity: Rare Cost: {R}{W}{B} Whenever a nontoken creature you control attacks, create a 1 1 red Goblin creature token that's tapped and attacking. Sacrifice Mardu Ascendancy: Creatures you control get +0 +3 until end of turn.