Mina al-Korodana, Dimir Agent

Mina al-Korodana, Dimir Agent is unblockable
{1}{u}{b}: Exile Mina al-Korodana, Dimir Agent from the game. Put a copy of a creature an opponent controls onto the battlefield under your control. After you attacked with this creature, exile it and put Mina a-Korodana, Dimir Agent onto the battlefield under your control.
I can go wherever I want without anything stopping me. I still want my keys back.