Kang, the Conqueror

Flying, Ward{2}

When Kang, the Conqueror enters the battlefield and at the beginning of your turn, choose
an opponent. You may copy target spell that was casted on their last turn, then you may cast the copy anytime during your turn without paying it's mana cost.
Kang the Conqueror gets +X/+0 where X is the mana value of the last spell that you copied.