Summoner of Dark Depths

When Summoner of Dark Depths enters the battlefield, you may search your library for a card
named Summoner of Dark Depths, reveal it, and
put it into your hand. Then shuffle your library.
Sacrifice ten Summoner of Dark Depths: Create
Marit Lage, a legendary 20/20 black Avatar
creature token with flying and indestructible.
A deck can have any number of cards named
Summoner of Dark Depths.