edhseer Commander synergy, explained

Precons › Commander Masters

Sliver Swarm

Commander precon · Commander Masters · 2023 · led by Sliver Gravemother

Main theme: Sliver tribal · Synergy 4.2/5 (tight) · Bracket 1–2 · Sliver Gravemother works with 44 of its cards

Upgrades at bracket 1–2

No Game Changers and no infinite combos: the level of an unchanged precon. Game Changers are cards on WotC's official list of cards that make a deck much stronger.

9 swaps, and after them the report reads the deck at bracket 1–2.

Its cards work together as before: synergy stays at 4.2 of 5, tight. It is a little more consistent: Build 3.9 → 4.1 of 5, from close to on target; no longer short on ramp, still 6 short on interaction, 4 short on card advantage, was 5. That is what this page measures: how well the deck holds together, not how strong it is.

Lands

  1. Take out Mountain: Mountain makes only red. Put in Badlands: Badlands never enters tapped and makes black or red.
  2. Take out Forest: Forest makes only green. Put in Savannah: Savannah never enters tapped and makes white or green.
  3. Take out Island: Island makes only blue. Put in Hallowed Fountain: Hallowed Fountain never enters tapped and makes white or blue.
  4. Take out Plains: Plains makes only white. Put in Temple Garden: Temple Garden never enters tapped and makes white or green.
  5. Take out Swamp: Swamp makes only black. Put in Bayou: Bayou never enters tapped and makes black or green.

Ramp

  1. Take out Crippling Fear: Crippling Fear is next on the report's cut list. It works with other cards only once, when it is played: with Lazotep Sliver. Put in Azorius Signet: Ramp: you were 2 short; Azorius Signet counts as ramp.
  2. Take out Descendants' Fury: Descendants' Fury is next on the report's cut list. Works with 5 other cards: with 5 again and again. Put in Boros Signet: Ramp: you were 2 short; Boros Signet counts as ramp.

Card advantage

  1. Take out Shifting Sliver: Shifting Sliver is next on the report's cut list. Works with 44 other cards: with 43 again and again, with 1 just once or in the background. Put in Dormant Sliver: Card advantage: you were 5 short; Dormant Sliver counts as card advantage. Dormant Sliver gives Constricting Sliver defender.

Cards that work together

  1. Take out Rukarumel, Biologist: Rukarumel, Biologist works with 6 cards in this deck, 4 of them on its theme; Thorncaster Sliver works with 46 cards, 42 of them on it, and with your commander. Put in Thorncaster Sliver: Thorncaster Sliver gives Constricting Sliver an extra ability

Upgrades at bracket 3

Up to three Game Changers, and no two-card infinite combo that costs 6 or less.

12 swaps, and after them the report reads the deck at bracket 3.

Its cards work together as before: synergy stays at 4.2 of 5, tight. It is a little more consistent: Build 3.9 → 4.1 of 5, from close to on target; no longer short on ramp, still 6 short on interaction, 4 short on card advantage, was 5. That is what this page measures: how well the deck holds together, not how strong it is.

Lands

  1. Take out Mountain: Mountain makes only red. Put in Badlands: Badlands never enters tapped and makes black or red.
  2. Take out Forest: Forest makes only green. Put in Savannah: Savannah never enters tapped and makes white or green.
  3. Take out Island: Island makes only blue. Put in Hallowed Fountain: Hallowed Fountain never enters tapped and makes white or blue.
  4. Take out Plains: Plains makes only white. Put in Temple Garden: Temple Garden never enters tapped and makes white or green.
  5. Take out Swamp: Swamp makes only black. Put in Bayou: Bayou never enters tapped and makes black or green.

Ramp

  1. Take out Crippling Fear: Crippling Fear is next on the report's cut list. It works with other cards only once, when it is played: with Lazotep Sliver. Put in Azorius Signet: Ramp: you were 2 short; Azorius Signet counts as ramp.
  2. Take out Descendants' Fury: Descendants' Fury is next on the report's cut list. Works with 5 other cards: with 5 again and again. Put in Boros Signet: Ramp: you were 2 short; Boros Signet counts as ramp.
  3. Take out Arcane Signet: Arcane Signet is weaker ramp than Smothering Tithe. Put in Smothering Tithe: Smothering Tithe is ramp too, and one of the strongest cards in Commander: a Game Changer, which this bracket allows.
  4. Take out Fellwar Stone: Fellwar Stone is weaker ramp than Chrome Mox. Put in Chrome Mox: Chrome Mox is ramp too, and one of the strongest cards in Commander: a Game Changer, which this bracket allows.
  5. Take out Pillar of Origins: Pillar of Origins is weaker ramp than Mana Vault. Put in Mana Vault: Mana Vault is ramp too, and one of the strongest cards in Commander: a Game Changer, which this bracket allows.

Card advantage

  1. Take out Shifting Sliver: Shifting Sliver is next on the report's cut list. Works with 44 other cards: with 43 again and again, with 1 just once or in the background. Put in Dormant Sliver: Card advantage: you were 5 short; Dormant Sliver counts as card advantage. Dormant Sliver gives Constricting Sliver defender.

Cards that work together

  1. Take out Rukarumel, Biologist: Rukarumel, Biologist works with 6 cards in this deck, 4 of them on its theme; Thorncaster Sliver works with 46 cards, 42 of them on it, and with your commander. Put in Thorncaster Sliver: Thorncaster Sliver gives Constricting Sliver an extra ability

Upgrades at bracket 4–5

No limits on Game Changers or combos.

15 swaps, and after them the report reads the deck at bracket 4–5.

Its cards work together as before: synergy stays at 4.2 of 5, tight. It is a little more consistent: Build 3.9 → 4.1 of 5, from close to on target; no longer short on ramp, still 6 short on interaction, 4 short on card advantage, was 5. That is what this page measures: how well the deck holds together, not how strong it is.

Lands

  1. Take out Mountain: Mountain makes only red. Put in Badlands: Badlands never enters tapped and makes black or red.
  2. Take out Forest: Forest makes only green. Put in Savannah: Savannah never enters tapped and makes white or green.
  3. Take out Island: Island makes only blue. Put in Hallowed Fountain: Hallowed Fountain never enters tapped and makes white or blue.
  4. Take out Plains: Plains makes only white. Put in Temple Garden: Temple Garden never enters tapped and makes white or green.
  5. Take out Swamp: Swamp makes only black. Put in Bayou: Bayou never enters tapped and makes black or green.

Ramp

  1. Take out Crippling Fear: Crippling Fear is next on the report's cut list. It works with other cards only once, when it is played: with Lazotep Sliver. Put in Azorius Signet: Ramp: you were 2 short; Azorius Signet counts as ramp.
  2. Take out Descendants' Fury: Descendants' Fury is next on the report's cut list. Works with 5 other cards: with 5 again and again. Put in Boros Signet: Ramp: you were 2 short; Boros Signet counts as ramp.
  3. Take out Arcane Signet: Arcane Signet is weaker ramp than Smothering Tithe. Put in Smothering Tithe: Smothering Tithe is ramp too, and one of the strongest cards in Commander: a Game Changer, which this bracket allows.
  4. Take out Fellwar Stone: Fellwar Stone is weaker ramp than Chrome Mox. Put in Chrome Mox: Chrome Mox is ramp too, and one of the strongest cards in Commander: a Game Changer, which this bracket allows.
  5. Take out Pillar of Origins: Pillar of Origins is weaker ramp than Mana Vault. Put in Mana Vault: Mana Vault is ramp too, and one of the strongest cards in Commander: a Game Changer, which this bracket allows.

Card advantage

  1. Take out Shifting Sliver: Shifting Sliver is next on the report's cut list. Works with 44 other cards: with 43 again and again, with 1 just once or in the background. Put in Dormant Sliver: Card advantage: you were 5 short; Dormant Sliver counts as card advantage. Dormant Sliver gives Constricting Sliver defender.
  2. Take out Distant Melody: Distant Melody is weaker card draw than Rhystic Study. Put in Rhystic Study: Rhystic Study is card draw too, and one of the strongest cards in Commander: a Game Changer, which this bracket allows.
  3. Take out For the Ancestors: For the Ancestors is weaker card selection than Narset, Parter of Veils. Put in Narset, Parter of Veils: Narset, Parter of Veils is card selection too, and one of the strongest cards in Commander: a Game Changer, which this bracket allows.

Board wipes

  1. Take out Cleansing Nova: Cleansing Nova is weaker board wipe than Cyclonic Rift. Put in Cyclonic Rift: Cyclonic Rift is board wipe too, and one of the strongest cards in Commander: a Game Changer, which this bracket allows.

Cards that work together

  1. Take out Rukarumel, Biologist: Rukarumel, Biologist works with 6 cards in this deck, 4 of them on its theme; Thorncaster Sliver works with 46 cards, 42 of them on it, and with your commander. Put in Thorncaster Sliver: Thorncaster Sliver gives Constricting Sliver an extra ability

Also short, against a typical Commander deck: interaction 6 of 12, card advantage 9 of 14, ramp 11 of 13.

The decklist

Creatures

Blade Sliver · Blur Sliver · Bonescythe Sliver · Bonesplitter Sliver · Brood Sliver · Capricious Sliver · Cleaving Sliver · Clot Sliver · Cloudshredder Sliver · Constricting Sliver · Crypt Sliver · Crystalline Sliver · Diffusion Sliver · Firewake Sliver · Galerider Sliver · Gemhide Sliver · Harmonic Sliver · Hatchery Sliver · Hibernation Sliver · Hollowhead Sliver · Lavabelly Sliver · Lazotep Sliver · Manaweft Sliver · Megantic Sliver · Might Sliver · Necrotic Sliver · Quick Sliver · Realmwalker · Regal Sliver · Rukarumel, Biologist · Sentinel Sliver · Shifting Sliver · Sinew Sliver · Sliver Hivelord · Spiteful Sliver · Striking Sliver · Synapse Sliver · Syphon Sliver · Taunting Sliver · Titan of Littjara · Two-Headed Sliver · Venom Sliver · Winged Sliver

Instants and sorceries

Cleansing Nova · Crippling Fear · Cultivate · Decimate · Distant Melody · Farseek · For the Ancestors · Harsh Mercy · Nature's Lore · Three Visits · Windfall

Artifacts and enchantments

Arcane Signet · Descendants' Fury · Fellwar Stone · Herald's Horn · Icon of Ancestry · Pillar of Origins · Sol Ring · Vanquisher's Banner

Lands

Ash Barrens · Canopy Vista · Cinder Glade · Command Tower · Exotic Orchard · Flood Plain · 3 Forest · Frontier Bivouac · Grasslands · Irrigated Farmland · 2 Island · Jungle Shrine · 2 Mountain · Mountain Valley · Mystic Monastery · Nomad Outpost · Opulent Palace · Path of Ancestry · 2 Plains · Prairie Stream · Rocky Tar Pit · Sandsteppe Citadel · Savage Lands · Scattered Groves · Seaside Citadel · Secluded Courtyard · Sheltered Thicket · Smoldering Marsh · Sunken Hollow · 2 Swamp · Unclaimed Territory

Other Commander Masters precons