Rebirth of the Skeleton Lord

As an addition cost, sacrifice any lands you tapped to cast Rebirth of the Skeleton Lord.
Skeletons you control have Menace and +1/+0.
When a Non-token Skeleton dies you create a 1/1 Black Skeleton Creature token
Tap an untapped Skeleton you control, Sacrifice it. Draw a card and add {b} to your mana pool.