: Sarkhan enters the battlefield with a number of loyalty counters on him equal to the number of Dragons in your graveyard.

+0: You may sacrifice an untapped Dragon you control. If you do, search your library for a Dragon creature card that has mana value equal to 1 plus the sacrificed creature's mana value.

-4: Return target Dragon creature card from your graveyard to the battlefield. That creature is a black Zombie in addition to its other colors and types.