Great video ... so far i agree with everything said!
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One (not so short as i intended) coment for spells tho ...
Thanks for taking time to watch and respond!
If I understand you spell suggestion the problem you describe is that we can't assign "direct cast" spell icon of a "native spell". So when we assign level 1 spell to hotbar, it will always be the version that will require confirmation (same with other level once upcasted version of them is available).
That's not something I discussed as I use hotbar much more sparingly, but that is definitely an issue that needs to be solve. If the system from weapons was implimented for spells I think that issue would solve itself, though any solution is welcome/needed.