N'Zoth, Master Manipulator

Commander Ninjutsu {1}{u/b}{u/b}
When N'Zoth, Master Manipulator enters the battlefield from its Commander Ninjutsu, search
your library for a Ninja or Rogue creature card
and put it into the battlefield tapped and
attacking.
When N'Zoth, Master Manipulator deals combat damage to a player, you may return this card to
your hand. If you do, search your deck for a
Ninja or Rogue card and add it to your hand.