High Priestess Ina

When High Priestess Ina enters the battlefield,
you may search your library for a card named
The Book of the Ancient Ones, reveal it, put it
into your hand, then shuffle.
Whenever you put a page counter on The Book
of the Ancient Ones, create a 1/1 black tentacle
creature token.
"You can't spell 'World Domination' without Ina."