The Abyss That Stares Back

The Abyss That Stares Back enters the battlefield tapped.
As The Abyss That Stares Back enters the battlefield, choose a nonland card name.
{t}, Pay 3 life, Sacrifice The Abyss That
Stares Back: Add {c}, spend this mana
only to cast a card with the chosen name,
you can cast it as though it had flash.