Third Sight

Reveal any number of cards in your hand. X is
how many times these cards share a color, type or
mana cost with a permanent you control. Choose
one: Gain X Life, or target player mills X cards,
or exile X cards from each graveyard.
If {b} was spent casting this spell, put a -X/-X
counter on target creature.
If {r} was spent casting this spell, do X damage to
one target.