Firstly, I hate the "guardian" girl (allegedly). She is extremely annoying, and I want to kick her.
Secondly... Why? Why? Why? Why the gimmick is so stupid? Not just because the guardian knows what to expect with this transplant, that probably have never happened before (since the guy was the first one, that was helped this way), but because it does not make sense. The fact that appraising help see trajectories - ok, I can kind of understand. But the fact that it allows to learn the skills? Not so much. At least not with non-existent explanation we got.
Yes one can argue "Oh, there is Taskmaster and similar character in comics!". Yes, but that they deal with physical actions, and can replicate actions because they are physically capable to begin with, and are, in general, "in touch with their body". Even though it is' obviously exaggerated in the comics, it's still logical how the "power", if we can call it that, works.
Someone else can argue "Oh, there are blue mages in Final Fantasy!". I am not familiar with the whole franchise, mostly FFXIV, where the it's not explained in much details, but there it's "mimicry". They are not copying the skills, they are trying to replicate the way they look and function using the aether from around them. It's still vague explanation, but it makes sense in the lore of the game. And before you mention Sharingan from Naruto: no it did not copy a skill, it allowed the user to see the way chakra was controlled and to replicate that, which in turn allowed to use the skill.
In this show, though it is outright copy. Yes, the guy needs to train afterwards (which is good), but still it does not make much sense. The super-powerful stick also feels like a bad plot device. If it's that strong, how the heck did other adventures were able to break off these branches? And how did they get out alive out of there, too? Or maybe they did not?
Anyway, dropping this. I just can't stomach the concept. Constantly moving elf ears did not help with that either.
