Ix'aern (Dark Knight)

Notes:
 * Popped from a ??? in F-8, J-8, F-10 or J-10 on level 1 by "sheer animosity".
 * Once you find the ???, kill the local Aern until a player gets the message "PLAYER is enveloped in sheer animosity".
 * That player must check the ??? quickly to pop the NM along with two Qn'aern helpers (one is RNG).