Neketh, Lord of the Choir

Flying, Deathtouch, Vigilance
When this Permanent Enters, if it was cast: Ensnare X; where "x" is equal the amount of mana used to cast this permanent. (Ensnare: take control of target creature and place x -1/-1 counters on it.)
{3}{t}: Exile this permanent. While it is exiled, you can cast this spell for {x} instead of paying its mana cost as if it had Flash. If cast from exile this creature gains Haste until end of turn.