A Short Journal About ShapeshiftingSo, once in a while I get very-original-comments claiming that Berzie could simply shapeshift into his previous form... (simply a brilliant observation. How did I not think of that before??) and I thought I would address the concern. Let's look at the big picture.

Basically, shapeshifters in various fictional universes tend to have a preferred form, sometimes it's also their "basic form". We have MLP changelings, for instance, who clearly have their basic form.

Another example would be World of Warcraft's druids - either elves or other race - they switch into their shapeshifting forms but ultimately, their basic form is their humanoid one. You might also know the trope that shapeshifters turn back to their original form upon death (like in Rick and Morty's episode "Total Rickall").

I remember a cartoon where a certain species of shapeshifters forgot their original form...

That being said, the whole idea of shapeshifting revolves around spending time in a form different than your origin