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Cosmo Fling — Modern metagame & decklists | CastHaven
Modern archetype
Cosmo Fling
Meta share · 30d
0.3%
n=2,981 decks
Top 8s · 30d
1
finishes of 8th or better
Best finish
4th
Modern Challenge 64, Jun 27, 2026
Power Index
How power scores work →
Results-only · last 90 days
Power Score
A
24.4
Rank
#10
of 54
▼
Down
1
Popularity
0.5%
46 entries
Pilot strength
84.4%
100% ranked
Win rate
65.4%
n=156 games
Current top-performing list
Cosmo Fling — 4th place
Modern Challenge 64 · Jun 27, 2026 · HawQ
via mtgo.com
Modern
Creatures · 8
4
Cosmogoyf
4
Devourer of Destiny
Instants · 13
4
Plunge into Darkness
Core vs. flex
Staples
In ≥90% of lists (modal quantity shown) · mainboard · last 30 days · n=8 lists
Insufficient data (n=8)
We don’t show percentages below the sample threshold. Check back as more events report.
Data as of Jul 4, 2026 · MTGO + paper
casthaven.com
Past top performers
Date
Event
Finish
Player
Compare
Jun 27, 2026
Modern Challenge 64
4th
HawQ
+
Add to compare
Modern Challenge 64
▼
Jun 27, 2026 · HawQ
Finish
4th
+
Add to compare
Top 8 finishes · last 30 days · rows expand to the full copyable list.
Trends
Cosmo Fling adoption
% of classified Modern decks · weekly · n=33,484
View as table
Data as of Jul 4, 2026 · MTGO + paper
casthaven.com
4
Spoils of the Vault
3
Pact of Negation
2
Summoner's Pact
Sorceries · 11
4
Inquisition of Kozilek
4
Thud
3
Providence
Artifacts · 4
4
Serum Powder
Lands · 24
4
Blackcleave Cliffs
4
Blooming Marsh
4
Gemstone Caverns
4
Gemstone Mine
3
Boseiju, Who Endures
3
Cavern of Souls
1
Copperline Gorge
1
Forest
Sideboard · 15
4
Chancellor of the Annex
4
Chancellor of the Tangle
2
Noxious Revival
2
Swamp
1
Copperline Gorge
1
Forest
1
Pact of Negation
Flex slots
Inclusion rate · mainboard · last 30 days · n=8 lists
Insufficient data (n=8)
We don’t show percentages below the sample threshold. Check back as more events report.
Data as of Jul 4, 2026 · MTGO + paper
casthaven.com
Rotated out
Blightstep Pathway // Searstep Pathway
last seen Jun 27, 2026 · in lists since Nov 30, 2025 · avg 1.3× per list
Darkbore Pathway // Slitherbore Pathway
last seen Jun 27, 2026 · in lists since Nov 30, 2025 · avg 1.2× per list
Gemstone Caverns
last seen Jun 27, 2026 · in lists since Nov 30, 2025 · avg 3.8× per list
Inquisition of Kozilek
last seen Jun 27, 2026 · in lists since Sep 27, 2025 · avg 3.5× per list
Temur Battle Rage
last seen Jun 27, 2026 · in lists since Dec 15, 2025 · avg 2.8× per list
Aloe Alchemist
last seen Jun 21, 2026 · in lists since Nov 30, 2025 · avg 1.4× per list
Lightning Bolt
last seen Jun 21, 2026 · in lists since Aug 30, 2025 · avg 2.9× per list
Claim // Fame
last seen May 24, 2026 · in lists since May 10, 2026 · avg 3.3× per list
Cards this deck used to play, from the archetype’s full card-pool history — when they were last seen and how many copies lists ran.
0%
Jun 9
Jun 29
Finish distribution
Final standings finishes · last 30 days · n=4 decks
View as table
1st
0
2nd
0
Top 4
1
Top 8
0
Other
3
Data as of Jul 4, 2026 · MTGO + paper
casthaven.com