Good to finally get an update. A few quick things:
" Here you can see when the Grimoire is activated it takes priority based on it's "importance" (the scrimshaw slot) "
Typo: that should be "its" with no apostrophe. You ONLY write "it's" if you mean and can replace it with "it is". The apostrophe is not used for the possessive form here.
From the gif, the "flashing" of low-timer icons isn't really noticeable because of how slow it is. It took me a while to notice that was even happening and in the heat of combat I doubt I'd notice it. Can it be made a bit more 'intense'?
The flashing is easier to see, I have to butcher the quality of the gifs to make them as small as possible for webpage usage/data downloading.
I'll sort the its now :)