Set windows Pick a window to compare it with the one before

Red: Reality Fracture (62 decks), compared with The Hobbit (67 decks)

New cards by set

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

Star Trek starts Nov 16. Decks built with its cards before then count in Reality Fracture, so these are early brews.

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

Built more

HOB → FRA
▲ Scalding Tarn 6.0% → 25.8% 4 → 16 decks

Built less

HOB → FRA

No card fell clearly.

Commanders

Share of Red decks · each builder counts once

No commander changed clearly. Closest to a trend:

▲ Ragavan, Nimble Pilferer 7.5% → 17.7% z = 1.8
▲ Tomik, Izzet Sparkmage 4.5% → 12.9% z = 1.7
▼ Gut, True Soul Zealot 9.0% → 3.2% z = -1.3

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 Reality Fracture 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.