Ugin, the Ineffable

Once you look at the exiled face-down card once, you may look at it again any time you wish. If another player gains control of the Spirit token, that player can't look at the exiled card.

A land normally has no color, even if it can produce one or more colors of mana.

To determine the total cost of a spell, start with the mana cost or alternative cost you're paying, add any cost increases, then apply any cost reductions (such as that of Ugin). The mana value of the spell remains unchanged, no matter what the total cost to cast it was.