Carlynn, Thief of Dreams

Menace, Deathtouch
When Carlynn, Thief of dreams enters the battlefield, exile the top 2 cards of target player's library. You may play those cards and pay
mana as though it were mana of any color to cast
them.
When Carlynn, Thief of Dreams deals combat
damage, exile the top 2 cards of target player's
library. You may play those cards and pay mana
as though it were mana of any color to cast them.