New cards by set

Cards first printed in the set · share of Gruul 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).

Cards

No card changed clearly between The Hobbit and Reality Fracture. Closest to a trend:

▼ Command Tower 78.6% → 48.4% z = -2.7

▼ Flame Slash 26.2% → 6.5% z = -2.2

▼ Taiga 42.9% → 22.6% z = -1.8

Commanders

Share of Gruul decks · each builder counts once

No commander changed clearly. Closest to a trend:

▼ Klothys, God of Destiny 16.7% → 6.5% 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

Number	TLA	ECL	TMT	SOS	MSH	HOB	FRA
Decks	24	23	32	32	36	42	31
Lands	18.9	19.2	17.5	18.6	17.8	18.3	18.5
Creatures	11.8	14.1	15.4	14.3	15.6	13.8	15.9
Other spells	18.2	15.5	14.3	16.1	15.6	16.8	14.5
Avg mana value	1.92	2.15	2.15	1.94	1.89	1.89	1.98
Removal	7.1	6.2	6.4	5.7	7.5	7.8	6.0
Draw	7.0	6.0	5.9	5.0	5.8	5.5	5.7
Ramp	6.9	7.0	6.8	7.4	6.6	6.3	6.8
Tutors	2.6	3.1	1.7	2.7	1.8	2.0	2.5
Protection	1.8	1.6	1.3	1.8	1.6	1.7	1.3
Counterspells	0.1	0.0	0.1	0.1	0.2	0.1	0.0
Discard	0.1	0.0	0.1	0.1	0.0	0.0	0.1
Sweepers	0.3	0.6	0.6	0.4	0.7	0.4	0.2
Fetchland decks	67%	39%	34%	38%	53%	50%	42%
With a sideboard	67%	22%	44%	41%	44%	64%	58%

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