Brainwashing Scaning

Exile X cards from target opponent's hand. You
can cast them and you can spend mana to cast it
as it was mana of any color. If X is 10 or more,
gain control of creatures with mana value up to
X.
Your mind isn't the safest place. The best way
to hide a secret is to forget it. Let me help.
-Cath'Hulu