Hmm... Well, my initial changes occurred in the heat of battle, not long after I arrived. In that time, I obtained the aforementioned talons.

[A small, simple change, but no less striking.]

In the following month, a Moon Warp occurred, and my entire body transformed. That's how I knew to anticipate the feathers, horns, ears, snout, wings, paws, and even a more bestial form that I could shift in and out of. I could also breathe fire.

When the Moon Warp ended, only the talons and my sharpened teeth remained. The following changes gradually occurred over the following months, and I suspect that once these more aquatic changes subside, my "intended" transformation will resume.