Cenith, Museum Curator

Whenever a creature enters the battlefield
under your control from a graveyard, you
may draw three cards. If you do, discard
two cards.
{3}{b}: Return target creature card from your
graveyard to the top of your library. If its
power is 4 or greater, return it to the
battlefield instead.
Credit to They'reInTheAttic for the small edit to add a person into Liss Noir's amazing background.