Colors
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Blue: Marvel Super Heroes (64 decks), compared with Secrets of Strixhaven (51 decks)

New cards by set

Cards first printed in the set · share of Blue decks that can play them

– means fewer than 3 decks. Picked up later: the share clearly rose after the release window (10+ decks, |z| ≥ 3).

Cards

No card changed clearly between Secrets of Strixhaven and Marvel Super Heroes. Closest to a trend:

▲ Mental Misstep 21.6% → 45.3% z = 2.7
▲ Ponder 27.5% → 51.6% z = 2.6
▲ Wasteland 5.9% → 23.4% z = 2.6

Commanders

Share of Blue decks · each builder counts once

No commander changed clearly. Closest to a trend:

▲ Namor the Sub-Mariner 3.9% → 14.1% z = 1.8
▲ Bruvac the Grandiloquent 7.8% → 14.1% z = 1.0

Shares are out of the decks that can play the card. A change shows when it's clear: 10+ decks on one side and |z| ≥ 3, odds under 1 in 300 by chance. Cards first printed in Marvel Super Heroes are under New cards by set.

Deck shape by window

Per deck, except the deck count and shares

Each builder counts once per commander and set window, with their latest list. A deck counts in the window of its last edit.