Skeletons you control and other Zombies you control get +1/+1 and have deathtouch. (Any amount of damage they deal to a creature is enough to destroy it.)

Menace (This creature can't be blocked except by two or more creatures.) When this creature dies, you may pay {B}. If you do, return it to its owner's hand. When this creature dies, you may pay {X}. If you do, return another target Zombie creature card with mana value X from your graveyard to the battlefield.

Deathtouch Whenever this creature deals combat damage to a player, that player discards a card and you create a tapped 2/2 black Zombie creature token.

As an additional cost to cast this spell, sacrifice a creature or enchantment. Exile target creature.

Whenever one or more cards leave your graveyard, create a tapped 2/2 black Zombie creature token. Partner (You can have two commanders if both have partner.)

({T}: Add {B}.)

Zombie spells you cast cost {1} less to cast. Zombie creatures you control get +2/+1.