Choice

He narrowed his eyes as he prepared himself. He had been analyzing the abyssfeeder deeply, gaining insight into it with every movement it made. There were several things that he found out about it.

Its patterns were actually incredibly simple, as a creature that adapted and changed in the same manner that plants naturally sought out sunlight, it did not possess complex thought that caused some incredibly complex patterns in behavior.

That sounded well and good, but it came with a deep problem

Its patterns were simple, it was just that the patterns continued changing as the body did, undoing a bit of his progress every time he changed it.

It was frustrating because it was in a way adapting to his adaptation by making it difficult to adapt to him. Of course, he knew that this wasn't actually the case. This was an unintended consequence of the nature of existence as opposed to an active adaptation measure that it took to counter his adaptation.