Toxic Lord of the Wastes

Toxic 1 (At the beginning of your upkeep, you get
one poison counter.)

All other skeletons you control get +1/+1 and
Menace.
At the beginning of combat on your turn,
you may lose X life and return target Skeleton
with mana value X or less from the graveyard to
the battlefield, where X is the amount of poison
counters you have.