Spiritual Egg

{t} : Put a Spiritual token on this card.
{t}{e} : Scry 1, then reveal the first card of your library, if this card is a Spirit draw it,
if not put it in the bot of your library.
{t}{x} : As a additional cost sacrifice this card.
Search in your library for a Spirit with a mana
cost inferior or equal to the number of
Spiritual Token on this card + X.
Then put it in the battlefield, tapped.