The easiest way I've found to get this achievement is actually in the "Aeroplane Blueprint" tutorial level at the top of the map at Inkwell Isle I (the first overworld). In order to get there, you'll need to complete "Ruse of an Ooze," which is the large tree on the map, and can be accessed immediately (note that you can defeat this level on simple difficulty in order to unlock the bridge that you need to make this easier/faster). When you complete that level, the bridge appears, allowing you to go up. Walk up to that area, and go to the statue with a blueprint on it, and enter it. Now fly between the dots labeled 1 and 2 in the parry section, and just tap
repeatedly (or whichever button you've mapped parry to). You'll very quickly get a good rhythm going parrying the pink dot left and right, and the achievement will be yours in about 2 minutes.