Tome of the Stars

Exile all instant and sorcery spells cast from a
player's hand as they resolve.
You may cast cards exiled with Tome of the Stars,
and you may spend mana of any color to cast them.
{w}{w}{w}{u}{u}{u}{t}, sacrifice Tome of the Stars:
Cast all cards exiled with Tome of the Stars
without paying their mana costs. Any variable
in a mana cost is six, all are considered kicked, multikicker spells are kicked 6 times.