Moss-Pit Skeleton

Kicker (You may pay an additional as you cast this spell.)

If Moss-Pit Skeleton was kicked, it enters with three +1/+1 counters on it.

Whenever one or more +1/+1 counters are put on a creature you control, if Moss-Pit Skeleton is in your graveyard, you may put Moss-Pit Skeleton on top of your library.