I own just the Core and the Starter.
(I didn’t want to fork over all the money for Deluxe since I didn’t know yet whether I’d love the game. I love everything about Puzzle Strike on paper, but when I played it I just found it stressful in a way that never made me want to play a 2nd game in one sitting, whereas I can play five games of Dominion in a row. Turns out I do like Codex at least as much as Magic, which I don’t buy, so eventually I’ll have to get the other factions.)
I use the right side of the first page for three mono-color heroes (Mid, Cal, Arg, in a vertical column). Then pages 2, 3, 4, 5 match the layout described int he core Rulebook (spells for the spec, tech 1, tech 2, tech 3, moving right in the rows that match each character). This leaves some extra space in the front, and a full page in the back.
The extra space in the front is dedicated to a Neutral character (say River) and all their spells. The extra page in the back is dedicated to all the tech units of that neutral character. This way, I can hand over binders for new players and say, “Ignore all the green cards, just use the grey from the front and back pages.” For a more experienced player, I can say, “Ignore the grey, just use the green.”
I rubber-band a small pile of starter deck, worker card, matching spec cards, and add-ons together, and that sits in one of the card-pile areas of the core box. That way I can just hand players all the set-up cards that go with their color.
I know that the hero cards are set-up cards, so they could go in this set-up pile, but I prefer having them in the binder to begin with so that it’s obvious which heroes come with which magic and tech cards.