Zombie Master [Unlimited Edition] San Diego Comic-Con 2014 and enchantment with mana value

and enchantment with mana value X or less

Set: Rivals of Ixalan Prerelease Promos Type: Instant Rarity: Rare Cost: {2}{B} Ascend (If you control ten or more permanents

If Firestorm Phoenix would die

It is imperative that its maker be found

When Mulldrifter enters the battlefield

Zombie Master [Unlimited Edition] San Diego Comic-Con 2014 and enchantment with mana valueSet: Unlimited Edition Type: Creature Zombie Rarity: Rare Cost: {1}{B}{B} Other Zombie creatures have swampwalk. (They can't be blocked as long as defending player controls a Swamp.) Other Zombies have "{B}: Regenerate this permanent." They say the Zombie Master controlled these foul creatures even before his own death, but now that he is one of them, nothing can make them betray him.