Alright King Boo, good work, but we cannot hold back, even with a tough opponent like Asena.

Now, we have to be ready to take anything she uses on you, so if she tries attacking with a supereffective Ghost or Dark type move, dodge as best as you can while retaliating with a fierce Drain Punch (e.g if she tries to Bite or Crunch on one of your arms, aim your green fist for her snout), otherwise, make a thick Haze around the area, then since that'll probably force her into using Odor Sleuth, take the time to throw a Sludge Bomb in her direction, finally, Drain Punch her again if you can see her.

Sub (other than the one above):

If she uses Double Team, destroy her clones with a Swift.