Jekalen, you can also try anything that that is either faster than Char X or physically defensive, and knows the following moves:
-Garchomp (not Mega)
2.Rock Slide/Stone Edge
-Garchomp (yes, as long as you OHKO Char X, it probably won't Outrage you back)
In addition, paralysis makes it easier to manage, so you can consider something physically defensive that can apply Thunder Wave, or a Prankster like Sableye or Thundurus.