Moving a list from one ink pair to another, or tuning a 60-card deck for a new set? Put the two lists side by side and see what came in and what went out.
Deck A
Deck B

A deck uses up to two ink colours, so switching one colour usually replaces a large block of cards, and the removed list shows exactly which ones.
Decks are at least 60 cards with up to four copies of each, so tuning a list is often about counts: a single row shows both when you go from two copies to four.
A different printing of the same card, such as an Enchanted version, is shown as a printing change, and the upgrade cost prices the printing you picked.
Two starter decks from The First Chapter, each built on its own ink pair.
Open this comparisonYes. Any two Lorcana decks can be compared, and a change of ink pair shows up as the cards each colour brings.
Yes. The upgrade cost adds up the cards in deck B that deck A does not have, at current prices, in your currency.
Yes. Starter decks are in the precon list, so search for them by name in either slot.
More in the deck compare FAQ.