Sliver Gravemother card art — Art by Chris Rahn · © Wizards of the Coast

Sliver Swarm

Bracket 2

CMM — Commander Masters · 2023-08-04

Commander: Sliver Gravemother · Color identity: BGRUW

Bracket

Power Level

4.4/10

Tipping Point

Game Changers

Why this bracket?

Card popularity is jank-tier (67% niche/jank), but the goldfish sim closes games around turn 8 in 100% of simulated hands — a deck that reliably works toward winning stays Bracket 2 (Core).
High optimization — score 23/75 (7 interaction spells, 8 card-advantage sources, 1 fast-mana sources) — raises this deck above its hard floor
Engine accuracy: 77.1% exact and 99.5% within one bracket on 1,229 organizer-labeled tournament decklists (engine v389).

How it compares

Against the 4 Commander Masters decks we analyzed, this is 2nd strongest — power 4.4 versus a set average of 4.7. That is about average for the library (4.6 across 174 precons). Its Tipping Point lands on turn 3, 1 turn earlier than the library median of turn 4.

More Commander Masters decks

Planeswalker Party — Bracket 3, power 5.6
Eldrazi Unbound — Bracket 2, power 4.4
Enduring Enchantments — Bracket 2, power 4.3

Other Bracket 2 precons at a similar power

Ahoy Mateys — Bracket 2, power 4.4
Blame Game — Bracket 2, power 4.4
Calling All Angels — Bracket 2, power 4.4
Chaos Incarnate — Bracket 2, power 4.4
Draconic Destruction — Bracket 2, power 4.4

Upgrade this precon

6 staples this deck does not already run — all legal in Sliver Gravemother's color identity, none over $20, and none of them a Game Changer, so none forces a Bracket 3 floor on its own. Adding cards can still move the bracket: paste the updated list back into the calculator to re-check.

Wayfarer's Bauble Ramp $5.61
Kodama's Reach Ramp $1.77
Rampant Growth Ramp $1.28
Swords to Plowshares Interaction $0.88
Path to Exile Interaction $0.69
Beast Within Interaction $0.65

Add all 6 to TCGplayer cart — about $10.88

Affiliate links. If you buy through one we earn a small commission, at no extra cost to you and with no effect on the bracket we report. Prices are Scryfall's latest and will drift.

Analyze in calculator → ← Back to library MTGJSON source ↗

Decklist (100 cards)

1 Sliver Gravemother
1 Rukarumel, Biologist
1 Regal Sliver
1 Taunting Sliver
1 Titan of Littjara
1 Lazotep Sliver
1 Capricious Sliver
1 Descendants' Fury
1 For the Ancestors
1 Hatchery Sliver
1 Bonescythe Sliver
1 Cleansing Nova
1 Harsh Mercy
1 Galerider Sliver
1 Synapse Sliver
1 Crippling Fear
1 Syphon Sliver
1 Spiteful Sliver
1 Brood Sliver
1 Megantic Sliver
1 Realmwalker
1 Cloudshredder Sliver
1 Decimate
1 Sliver Hivelord
1 Icon of Ancestry
1 Vanquisher's Banner
1 Canopy Vista
1 Cinder Glade
1 Exotic Orchard
1 Irrigated Farmland
1 Prairie Stream
1 Scattered Groves
1 Sheltered Thicket
1 Smoldering Marsh
1 Sunken Hollow
1 Arcane Signet
1 Fellwar Stone
1 Sol Ring
1 Ash Barrens
1 Command Tower
1 Path of Ancestry
1 Constricting Sliver
1 Sentinel Sliver
1 Sinew Sliver
1 Diffusion Sliver
1 Distant Melody
1 Shifting Sliver
1 Windfall
1 Winged Sliver
1 Clot Sliver
1 Crypt Sliver
1 Blade Sliver
1 Blur Sliver
1 Bonesplitter Sliver
1 Cleaving Sliver
1 Hollowhead Sliver
1 Striking Sliver
1 Two-Headed Sliver
1 Cultivate
1 Farseek
1 Gemhide Sliver
1 Manaweft Sliver
1 Might Sliver
1 Nature's Lore
1 Quick Sliver
1 Three Visits
1 Venom Sliver
1 Crystalline Sliver
1 Firewake Sliver
1 Harmonic Sliver
1 Hibernation Sliver
1 Lavabelly Sliver
1 Necrotic Sliver
1 Herald's Horn
1 Pillar of Origins
1 Flood Plain
1 Frontier Bivouac
1 Grasslands
1 Jungle Shrine
1 Mountain Valley
1 Mystic Monastery
1 Nomad Outpost
1 Opulent Palace
1 Rocky Tar Pit
1 Sandsteppe Citadel
1 Savage Lands
1 Seaside Citadel
1 Secluded Courtyard
1 Unclaimed Territory
2 Plains
2 Island
2 Swamp
2 Mountain
3 Forest

Bracket assignment per WotC Commander Brackets Beta. Decklist sourced from MTGJSON (https://mtgjson.com/api/v5/decks/SliverSwarm_CMM.json). Analyzed against https://scrollvault.net on 2026-10-09.