Nightblade Substitution

When this card enters the battlefield, you may then search your library and/or graveyard for a card named Nex, Insightful Assassin, reveal it, and put it into your hand. If you search your library this way, shuffle it.
{u}{b}, {t}: Return target nonland permanent you control to its owner's hand. Create a 0/1 colorless Statue creature token with defender.
A true assassin knows when to retreat