Meenlock

skulk
When Meenlock enters the field, place a mind
degrade counter on a creature.
{t}, {3}{b}, target creature with the mind degrade counter this creature put out gains a -1/-1
counter. If this action would cause a creature to
be sent to the graveyard, exile it instead and
search your library for a card with the name "Meenlock", reveal it, shuffle your library, and
put it in your hand