Maybe I should just use them to practice PD0?That'll work, for sure. If it were me, they'd all be gone within a day this way.

That

order is very peculiar indeed. There are three possible scenarios (based on the footage):
1) Grab

, transform DA, kill UA, grab dragonfly.
2) Grab

, transform UA, kill DA, grab dragonfly.
3) Kill DA, grab

, transform UA, grab dragonfly.
So at least one of these allows for order. #3 makes the most sense, because you transform and capture the enemy in one go, whereas the other options separate the two actions. I wonder if it counts as "killed" when you transform it, or when you capture it. Go ahead and post in Small Discoveries just as soon as you manage to riddle something out (on any level).
But the strangest part is that I could've sworn I have gotten lucky with

before, and gotten right order ... but no giant crystal fell. I even remember doing this on level 7, which only has two enemies, so there is no way I could have made a "mistake." Curiouser and curiouser ...