How do you do the custom sections? I have sections on an excel of how I built it but I don't know how to show that in deckstats
Within the deckbuilder, at the bottom of the list of cards in the main deck, before getting into the sideboard and maybeboard, there is a little link for "Create new section". Clicking this will prompt you to input a name for the section (traditionally it'd be things like "Lands", "Removal", "Ramp" etc. but can be whatever you want. "Crabs" for example).
Once you've given the section a name, it will appear within the main deckbuilder card list. You can then drag cards into this section. These custom sections will also appear in the dialog box that pops up when you click the edit (pencil) icon for a card (this is particularly useful for moving lands as dragging them will do this one at a time but with the edit button you can do them all at once).
Once you've sorted out all of the sections and put the cards in the right place, the little embedded deck lists should automatically appear grouped with these custom sections.
Also, props for going crab tribal. I thought bears with Ayula was scraping the barrel. Good job man.