Skeletal Swarming

Each Skeleton you control has trample, attacks each combat if able, and gets +X/+0, where X is the number of other Skeletons you control.
At the beginning of your end step, create a tapped
1/1 black Skeleton creature token. If a creature died this turn, create two of those tokens instead.

Long ago, the Nox invoked the ire of the Greater Will, and were banished deep underground. Now they live under a false night sky, in eternal anticipation of their liege.