Ugin, the Awakened

+2: Ugin, the Awakened becomes a legendary 5/6 spirit dragon creature token with flying, haste and protection from all colors.
-X: Exile X colorless spells from your hand, you gain twice X life and draw half X cards, rounded up.
-12: Search your library for six colorless spells, you get an emblem with "You may cast colorless spells from your hand without paying the mana cost"