Knowledge of Fate

You may exile any number of blue cards from
your hand as you cast this spell. Each card exiled
this way pays for {2} in this spell's mana cost. If
you exiled cards this way, as an additional cost to
cast this spell, pay any amount of life.
Draw X cards, where X is the number of cards
exiled plus the amount of life paid. If you didn't
pay either of these costs, instead draw ten cards.
You may cast Knowledge of Fate transformed
from your graveyard by paying {2}{u}{u}.