Premium tool

Deck Compare

Put two lists side by side and see exactly what changed — every card in and out, and what those swaps actually did to the deck.

Why a diff beats two separate analyses

You can already analyse two decks one after the other and compare the numbers by eye. What that misses is the connection between them: which eleven cards you swapped, and which of those swaps moved the bracket. Seeing "power 6.4" and "power 7.1" tells you something changed. Seeing the cards that came in alongside that jump tells you what to do next.

What gets compared

Cards first: added, removed, and quantity changes, with a similarity figure for how much of the combined pool the two lists share. Then the analysis — power, speed, consistency, saltiness, average mana value, ramp, draw and removal percentages, tutor count and total cards, each shown as before, after, and the difference.

Category changes get their own section, because those are the ones with bracket consequences. Gaining a Game Changer or a piece of fast mana is worth knowing about specifically, not buried in a percentage.

When it's most useful

Three situations, mainly. Comparing a precon against your upgraded version, to see whether the changes did what you intended. Comparing your deck against an earlier saved version, to work out when it drifted out of the bracket you built it for. And comparing two builds of the same commander to decide which direction to commit to.

Note that not every increase is an improvement. Higher saltiness, higher average mana value and a bigger card count are shown neutrally rather than coloured green, because whether they're good depends entirely on what you were trying to do.