Castle of the Crow King

When Castle of the Crow King enters the battlefield,
create three 0/1 black Crow tokens with flying.
{t}: Add {1} to your mana pool
{2}{b}{t}: Create a 0/1 black Crow token
{5}, sacrifice 5 crows: Search your library for a
card named "Ilizar, Crow King", reveal it and put
it in your hand. Shuffle your library