Experimental Synthesizer representative art for Mardu Synthesizer

Art: Yeong-Hao Han © Wizards of the Coast

← Pauper metagame

Mardu Synthesizer

11 decks from 11 events · 26 Sep – 25 Oct 2026

Counting lists over the last
11Decks0.4% of published lists▴ 0.1 pp vs. the 30 days before
46.3%Win rate 32.1–61.3% · 19–22–2 · 43-match sample▾ 21.8 pp vs. the 30 days before
67.3 of 75 LockedSlots settled29 cards, each in 80% of lists or more
7.7 slotsStill argued overspread over 23 cards, in both boards

Maindeck 60 slots

4 copies in every list 4 copies in 1 list out of 4 1 copy in every list always 1 copy, sometimes 2 Grey means 80% of lists or more. Violet means fewer.

Settled core

22 cards · 55.9 slots
Cleansing Wildfire 100% Cleansing Wildfire1st 100% · 2nd 100% · 3rd 100% · 4th 100%
Drossforge Bridge 100% Drossforge Bridge1st 100% · 2nd 100% · 3rd 100% · 4th 100%
Experimental Synthesizer 100% Experimental Synthesizer1st 100% · 2nd 100% · 3rd 100% · 4th 100%
Galvanic Blast 100% Galvanic Blast1st 100% · 2nd 100% · 3rd 100% · 4th 100%
Glint Hawk 100% Glint Hawk1st 100% · 2nd 100% · 3rd 100% · 4th 100%
Kor Skyfisher 100% Kor Skyfisher1st 100% · 2nd 100% · 3rd 100% · 4th 100%
Mountain 100% Mountain1st 100% · 2nd 91% · 3rd 9%
Plains 100% Plains1st 100% · 2nd 100% · 3rd 18%
Refurbished Familiar 100% Refurbished Familiar1st 100% · 2nd 100% · 3rd 100% · 4th 100%
Rustvale Bridge 100% Rustvale Bridge1st 100% · 2nd 100% · 3rd 100% · 4th 27%
Shattered Landscape 100% Shattered Landscape1st 100% · 2nd 100% · 3rd 18%
Swamp 100% Swamp1st 100% · 2nd 91%
Tithing Blade // Consuming Sepulcher 100% Tithing Blade // Consuming Sepulcher1st 100% · 2nd 9%
Ancient Den 91% Ancient Den1st 91% · 2nd 73%
Great Furnace 91% Great Furnace1st 91%
Lembas 91% Lembas1st 91% · 2nd 91% · 3rd 91% · 4th 91%
Vault of Whispers 91% Vault of Whispers1st 91%
Black Mage's Rod 82% Black Mage's Rod1st 82% · 2nd 82% · 3rd 82%
Blood Fountain 82% Blood Fountain1st 82%
Lightning Bolt 82% Lightning Bolt1st 82% · 2nd 82% · 3rd 73% · 4th 9%
Makeshift Munitions 82% Makeshift Munitions1st 82%
Navigator's Compass 82% Navigator's Compass1st 82% · 2nd 73% · 3rd 9%

Still argued over

10 cards · 4.1 slots
Goldmire Bridge 73% Goldmire Bridge1st 73%
Thraben Charm 64% Thraben Charm1st 64%
Dispatch 36% Dispatch1st 36% · 2nd 36% · 3rd 36% · 4th 18%
Giant's Boulder 18% Giant's Boulder1st 18% · 2nd 9% · 3rd 9%
Nihil Spellbomb 18% Nihil Spellbomb1st 18% · 2nd 9%

5 cards are in fewer than 10% of lists. Their rows are not shown. Their 0.8 slots still count in the total above.

Point to a card to read its copies. Each percentage is the share of lists that play at least that many.

Sideboard 15 slots

Settled core

7 cards · 11.4 slots
Nihil Spellbomb 91% Nihil Spellbomb1st 91% · 2nd 73%
Pyroblast 91% Pyroblast1st 91% · 2nd 73% · 3rd 36% · 4th 18%
Thraben Charm 91% Thraben Charm1st 91% · 2nd 9%
Dust to Dust 82% Dust to Dust1st 82% · 2nd 82% · 3rd 82%
Krark-Clan Shaman 82% Krark-Clan Shaman1st 82% · 2nd 73%
Navigator's Compass 82% Navigator's Compass1st 82% · 2nd 55% · 3rd 9%
Tithing Blade // Consuming Sepulcher 82% Tithing Blade // Consuming Sepulcher1st 82% · 2nd 18% · 3rd 9%

Still argued over

13 cards · 3.6 slots
Red Elemental Blast 64% Red Elemental Blast1st 64% · 2nd 64% · 3rd 9%
Thorn of the Black Rose 45% Thorn of the Black Rose1st 45%
Campfire 18% Campfire1st 18% · 2nd 9% · 3rd 9% · 4th 9%

10 cards are in fewer than 10% of lists. Their rows are not shown. Their 1.4 slots still count in the total above.

Point to a card to read its copies. Each percentage is the share of lists that play at least that many.

The lists people registered 11 published lists in this window. Pick one. The lists can reach past this window. The numbers above count only this window.

Every list

newest first
Show decklist for jibeta
#3 jibeta Pauper Challenge 16 · 2026-10-10 · 4-3-0 Representative

Maindeck (60)

Creatures (12)
  • 4 Glint Hawk 100%
  • 4 Kor Skyfisher 100%
  • 4 Refurbished Familiar 100%
Sorceries (4)
  • 4 Cleansing Wildfire 100%
Instants (8)
  • 4 Galvanic Blast 100%
  • 3 Lightning Bolt 82%
  • 1 Thraben Charm 64%
Artifacts (15)
  • 1 Blood Fountain 82%
  • 4 Experimental Synthesizer 100%
  • 2 Navigator's Compass 82%
  • 3 Black Mage's Rod 82%
  • 4 Lembas 91%
  • 1 Tithing Blade // Consuming Sepulcher 100%
Enchantments (1)
  • 1 Makeshift Munitions 82%
Lands (20)
  • 2 Ancient Den 91%
  • 4 Drossforge Bridge 100%
  • 1 Goldmire Bridge 73%
  • 1 Great Furnace 91%
  • 2 Mountain 100%
  • 2 Plains 100%
  • 3 Rustvale Bridge 100%
  • 2 Shattered Landscape 100%
  • 2 Swamp 100%
  • 1 Vault of Whispers 91%

Sideboard (15)

  • 2 Krark-Clan Shaman 82%
  • 1 Navigator's Compass 82%
  • 2 Nihil Spellbomb 91%
  • 2 Pyroblast 91%
  • 2 Red Elemental Blast 64%
  • 1 Thraben Charm 91%
  • 1 Tithing Blade // Consuming Sepulcher 82%
  • 3 Dust to Dust 82%
  • 1 Thorn of the Black Rose 45%
Glint Hawk
Point to a card to read its copies. Bright names are in 80% of lists or more. Dim names are still argued over.
Show decklist for 19LNC91
#13 19LNC91 Pauper Challenge 32 · 2026-10-19 · 4-2-0

Maindeck (60)

Creatures (12)
  • 4 Glint Hawk 100%
  • 4 Kor Skyfisher 100%
  • 4 Refurbished Familiar 100%
Sorceries (4)
  • 4 Cleansing Wildfire 100%
Instants (11)
  • 4 Dispatch 36%
  • 4 Galvanic Blast 100%
  • 3 Lightning Bolt 82%
Artifacts (13)
  • 4 Experimental Synthesizer 100%
  • 3 Black Mage's Rod 82%
  • 4 Lembas 91%
  • 2 Tithing Blade // Consuming Sepulcher 100%
Lands (20)
  • 1 Ancient Den 91%
  • 4 Drossforge Bridge 100%
  • 1 Great Furnace 91%
  • 2 Mountain 100%
  • 2 Plains 100%
  • 4 Rustvale Bridge 100%
  • 3 Shattered Landscape 100%
  • 2 Swamp 100%
  • 1 Vault of Whispers 91%

Sideboard (15)

  • 1 Campfire 18%
  • 3 Navigator's Compass 82%
  • 2 Nihil Spellbomb 91%
  • 4 Pyroblast 91%
  • 1 Dawnbringer Cleric 9%
  • 1 Thraben Charm 91%
  • 3 Dust to Dust 82%
Glint Hawk
Point to a card to read its copies. Bright names are in 80% of lists or more. Dim names are still argued over.
Show decklist for jibeta
#11 jibeta Pauper Challenge 16 · 2026-10-17 · 3-2-0

Maindeck (60)

Creatures (12)
  • 4 Glint Hawk 100%
  • 4 Kor Skyfisher 100%
  • 4 Refurbished Familiar 100%
Sorceries (4)
  • 4 Cleansing Wildfire 100%
Instants (8)
  • 4 Galvanic Blast 100%
  • 4 Lightning Bolt 82%
Artifacts (15)
  • 1 Blood Fountain 82%
  • 4 Experimental Synthesizer 100%
  • 1 Navigator's Compass 82%
  • 1 Nihil Spellbomb 18%
  • 3 Black Mage's Rod 82%
  • 4 Lembas 91%
  • 1 Tithing Blade // Consuming Sepulcher 100%
Enchantments (1)
  • 1 Makeshift Munitions 82%
Lands (20)
  • 2 Ancient Den 91%
  • 4 Drossforge Bridge 100%
  • 1 Goldmire Bridge 73%
  • 1 Great Furnace 91%
  • 2 Mountain 100%
  • 2 Plains 100%
  • 3 Rustvale Bridge 100%
  • 2 Shattered Landscape 100%
  • 2 Swamp 100%
  • 1 Vault of Whispers 91%

Sideboard (15)

  • 2 Krark-Clan Shaman 82%
  • 1 Navigator's Compass 82%
  • 1 Nihil Spellbomb 91%
  • 3 Pyroblast 91%
  • 2 Red Elemental Blast 64%
  • 1 Arashin Cleric 9%
  • 1 Thraben Charm 91%
  • 1 Tithing Blade // Consuming Sepulcher 82%
  • 3 Dust to Dust 82%
Glint Hawk
Point to a card to read its copies. Bright names are in 80% of lists or more. Dim names are still argued over.
Show decklist for FriskiFraska
#16 FriskiFraska Pauper Challenge 32 · 2026-10-14 · 3-3-0

Maindeck (60)

Creatures (12)
  • 4 Glint Hawk 100%
  • 4 Kor Skyfisher 100%
  • 4 Refurbished Familiar 100%
Sorceries (4)
  • 4 Cleansing Wildfire 100%
Instants (8)
  • 4 Galvanic Blast 100%
  • 3 Lightning Bolt 82%
  • 1 Thraben Charm 64%
Artifacts (15)
  • 1 Blood Fountain 82%
  • 4 Experimental Synthesizer 100%
  • 2 Navigator's Compass 82%
  • 3 Black Mage's Rod 82%
  • 4 Lembas 91%
  • 1 Tithing Blade // Consuming Sepulcher 100%
Enchantments (1)
  • 1 Makeshift Munitions 82%
Lands (20)
  • 2 Ancient Den 91%
  • 4 Drossforge Bridge 100%
  • 1 Goldmire Bridge 73%
  • 1 Great Furnace 91%
  • 2 Mountain 100%
  • 2 Plains 100%
  • 3 Rustvale Bridge 100%
  • 2 Shattered Landscape 100%
  • 2 Swamp 100%
  • 1 Vault of Whispers 91%

Sideboard (15)

  • 2 Krark-Clan Shaman 82%
  • 2 Navigator's Compass 82%
  • 2 Nihil Spellbomb 91%
  • 2 Pyroblast 91%
  • 2 Red Elemental Blast 64%
  • 1 Thraben Charm 91%
  • 1 Tithing Blade // Consuming Sepulcher 82%
  • 3 Dust to Dust 82%
Glint Hawk
Point to a card to read its copies. Bright names are in 80% of lists or more. Dim names are still argued over.
Show decklist for OlavoJusMTM
5–0 OlavoJusMTM Pauper League · 2026-10-14 · 5-0-0

Maindeck (60)

Creatures (12)
  • 4 Glint Hawk 100%
  • 4 Kor Skyfisher 100%
  • 4 Refurbished Familiar 100%
Sorceries (4)
  • 4 Cleansing Wildfire 100%
Instants (8)
  • 4 Galvanic Blast 100%
  • 3 Lightning Bolt 82%
  • 1 Thraben Charm 64%
Artifacts (15)
  • 1 Blood Fountain 82%
  • 4 Experimental Synthesizer 100%
  • 2 Navigator's Compass 82%
  • 3 Black Mage's Rod 82%
  • 4 Lembas 91%
  • 1 Tithing Blade // Consuming Sepulcher 100%
Enchantments (1)
  • 1 Makeshift Munitions 82%
Lands (20)
  • 2 Ancient Den 91%
  • 4 Drossforge Bridge 100%
  • 1 Goldmire Bridge 73%
  • 1 Great Furnace 91%
  • 2 Mountain 100%
  • 2 Plains 100%
  • 3 Rustvale Bridge 100%
  • 2 Shattered Landscape 100%
  • 2 Swamp 100%
  • 1 Vault of Whispers 91%

Sideboard (15)

  • 2 Krark-Clan Shaman 82%
  • 1 Navigator's Compass 82%
  • 2 Nihil Spellbomb 91%
  • 2 Pyroblast 91%
  • 2 Red Elemental Blast 64%
  • 1 Thraben Charm 91%
  • 1 Tithing Blade // Consuming Sepulcher 82%
  • 3 Dust to Dust 82%
  • 1 Thorn of the Black Rose 45%
Glint Hawk
Point to a card to read its copies. Bright names are in 80% of lists or more. Dim names are still argued over.
Show decklist for jibeta
#12 jibeta Pauper Challenge 16 · 2026-10-13 · 3-3-0

Maindeck (60)

Creatures (12)
  • 4 Glint Hawk 100%
  • 4 Kor Skyfisher 100%
  • 4 Refurbished Familiar 100%
Sorceries (4)
  • 4 Cleansing Wildfire 100%
Instants (8)
  • 4 Galvanic Blast 100%
  • 3 Lightning Bolt 82%
  • 1 Thraben Charm 64%
Artifacts (15)
  • 1 Blood Fountain 82%
  • 4 Experimental Synthesizer 100%
  • 2 Navigator's Compass 82%
  • 3 Black Mage's Rod 82%
  • 4 Lembas 91%
  • 1 Tithing Blade // Consuming Sepulcher 100%
Enchantments (1)
  • 1 Makeshift Munitions 82%
Lands (20)
  • 2 Ancient Den 91%
  • 4 Drossforge Bridge 100%
  • 1 Goldmire Bridge 73%
  • 1 Great Furnace 91%
  • 2 Mountain 100%
  • 2 Plains 100%
  • 3 Rustvale Bridge 100%
  • 2 Shattered Landscape 100%
  • 2 Swamp 100%
  • 1 Vault of Whispers 91%

Sideboard (15)

  • 2 Krark-Clan Shaman 82%
  • 2 Navigator's Compass 82%
  • 2 Nihil Spellbomb 91%
  • 2 Pyroblast 91%
  • 2 Red Elemental Blast 64%
  • 1 Thraben Charm 91%
  • 1 Tithing Blade // Consuming Sepulcher 82%
  • 3 Dust to Dust 82%
Glint Hawk
Point to a card to read its copies. Bright names are in 80% of lists or more. Dim names are still argued over.
Show decklist for planinauta_pobre
#174 planinauta_pobre Super Pauper 50K - Fuguete Edition · 2026-10-10 · 2-4-1

Maindeck (60)

Creatures (14)
  • 4 Glint Hawk 100%
  • 2 Krark-Clan Shaman 9%
  • 4 Kor Skyfisher 100%
  • 4 Refurbished Familiar 100%
Sorceries (4)
  • 4 Cleansing Wildfire 100%
Instants (9)
  • 3 Dispatch 36%
  • 4 Galvanic Blast 100%
  • 2 Toxin Analysis 9%
Artifacts (13)
  • 1 Blood Fountain 82%
  • 4 Experimental Synthesizer 100%
  • 1 Giant's Boulder 18%
  • 3 Navigator's Compass 82%
  • 2 Nihil Spellbomb 18%
  • 1 Ragged Short Spear 9%
  • 1 Tithing Blade // Consuming Sepulcher 100%
Enchantments (1)
  • 1 Makeshift Munitions 82%
Lands (19)
  • 2 Ancient Den 91%
  • 1 Bojuka Bog 9%
  • 4 Drossforge Bridge 100%
  • 1 Great Furnace 91%
  • 1 Mountain 100%
  • 2 Plains 100%
  • 4 Rustvale Bridge 100%
  • 2 Shattered Landscape 100%
  • 1 Swamp 100%
  • 1 Vault of Whispers 91%

Sideboard (15)

  • 1 Dispatch 9%
  • 1 Krark-Clan Shaman 82%
  • 1 Nihil Spellbomb 91%
  • 1 Pyroblast 91%
  • 1 Toxin Analysis 9%
  • 2 Cast into the Fire 9%
  • 3 Revoke Existence 9%
  • 2 Thraben Charm 91%
  • 3 Tithing Blade // Consuming Sepulcher 82%
Glint Hawk
Point to a card to read its copies. Bright names are in 80% of lists or more. Dim names are still argued over.
Show decklist for Eddipuma
#58 Eddipuma Common Island 2 – A Tournament by Pauper to the People · 2026-10-03 · 3-3-1

Maindeck (60)

Creatures (12)
  • 4 Glint Hawk 100%
  • 4 Kor Skyfisher 100%
  • 4 Refurbished Familiar 100%
Sorceries (4)
  • 4 Cleansing Wildfire 100%
Instants (10)
  • 4 Dispatch 36%
  • 4 Galvanic Blast 100%
  • 2 Lightning Bolt 82%
Artifacts (15)
  • 4 Experimental Synthesizer 100%
  • 3 Giant's Boulder 18%
  • 3 Soul-Guide Lantern 9%
  • 4 Lembas 91%
  • 1 Tithing Blade // Consuming Sepulcher 100%
Lands (19)
  • 4 Drossforge Bridge 100%
  • 3 Mountain 100%
  • 3 Plains 100%
  • 4 Rustvale Bridge 100%
  • 3 Shattered Landscape 100%
  • 2 Swamp 100%

Sideboard (15)

  • 4 Campfire 18%
  • 2 Electrickery 9%
  • 4 Pyroblast 91%
  • 1 Soul-Guide Lantern 9%
  • 2 Vandalblast 9%
  • 2 Tithing Blade // Consuming Sepulcher 82%
Glint Hawk
Point to a card to read its copies. Bright names are in 80% of lists or more. Dim names are still argued over.
Show decklist for DB_barczek
5–0 DB_barczek Pauper League · 2026-09-27 · 5-0-0

Maindeck (60)

Creatures (12)
  • 4 Glint Hawk 100%
  • 4 Kor Skyfisher 100%
  • 4 Refurbished Familiar 100%
Sorceries (4)
  • 4 Cleansing Wildfire 100%
Instants (8)
  • 4 Galvanic Blast 100%
  • 3 Lightning Bolt 82%
  • 1 Thraben Charm 64%
Artifacts (15)
  • 1 Blood Fountain 82%
  • 4 Experimental Synthesizer 100%
  • 2 Navigator's Compass 82%
  • 3 Black Mage's Rod 82%
  • 4 Lembas 91%
  • 1 Tithing Blade // Consuming Sepulcher 100%
Enchantments (1)
  • 1 Makeshift Munitions 82%
Lands (20)
  • 2 Ancient Den 91%
  • 4 Drossforge Bridge 100%
  • 1 Goldmire Bridge 73%
  • 1 Great Furnace 91%
  • 2 Mountain 100%
  • 2 Plains 100%
  • 3 Rustvale Bridge 100%
  • 2 Shattered Landscape 100%
  • 2 Swamp 100%
  • 1 Vault of Whispers 91%

Sideboard (15)

  • 2 Krark-Clan Shaman 82%
  • 2 Navigator's Compass 82%
  • 2 Nihil Spellbomb 91%
  • 3 Red Elemental Blast 64%
  • 1 Thraben Charm 91%
  • 1 Tithing Blade // Consuming Sepulcher 82%
  • 3 Dust to Dust 82%
  • 1 Thorn of the Black Rose 45%
Glint Hawk
Point to a card to read its copies. Bright names are in 80% of lists or more. Dim names are still argued over.
Show decklist for Denisevich
#29 Denisevich Pauper Challenge 16 · 2026-09-26 · 1-2-0

Maindeck (60)

Creatures (12)
  • 4 Glint Hawk 100%
  • 4 Kor Skyfisher 100%
  • 4 Refurbished Familiar 100%
Sorceries (4)
  • 4 Cleansing Wildfire 100%
Instants (8)
  • 3 Dispatch 36%
  • 4 Galvanic Blast 100%
  • 1 Thraben Charm 64%
Artifacts (15)
  • 1 Blood Fountain 82%
  • 4 Experimental Synthesizer 100%
  • 2 Navigator's Compass 82%
  • 3 Black Mage's Rod 82%
  • 4 Lembas 91%
  • 1 Tithing Blade // Consuming Sepulcher 100%
Enchantments (1)
  • 1 Makeshift Munitions 82%
Lands (20)
  • 1 Ancient Den 91%
  • 4 Drossforge Bridge 100%
  • 1 Goldmire Bridge 73%
  • 1 Great Furnace 91%
  • 2 Mountain 100%
  • 3 Plains 100%
  • 3 Rustvale Bridge 100%
  • 2 Shattered Landscape 100%
  • 2 Swamp 100%
  • 1 Vault of Whispers 91%

Sideboard (15)

  • 1 Gorilla Shaman 9%
  • 2 Krark-Clan Shaman 82%
  • 2 Navigator's Compass 82%
  • 2 Nihil Spellbomb 91%
  • 3 Pyroblast 91%
  • 1 Thraben Charm 91%
  • 3 Dust to Dust 82%
  • 1 Thorn of the Black Rose 45%
Glint Hawk
Point to a card to read its copies. Bright names are in 80% of lists or more. Dim names are still argued over.
Show decklist for jibeta
5–0 jibeta Pauper League · 2026-09-26 · 5-0-0

Maindeck (60)

Creatures (12)
  • 4 Glint Hawk 100%
  • 4 Kor Skyfisher 100%
  • 4 Refurbished Familiar 100%
Sorceries (4)
  • 4 Cleansing Wildfire 100%
Instants (8)
  • 4 Galvanic Blast 100%
  • 3 Lightning Bolt 82%
  • 1 Thraben Charm 64%
Artifacts (15)
  • 1 Blood Fountain 82%
  • 4 Experimental Synthesizer 100%
  • 2 Navigator's Compass 82%
  • 3 Black Mage's Rod 82%
  • 4 Lembas 91%
  • 1 Tithing Blade // Consuming Sepulcher 100%
Enchantments (1)
  • 1 Makeshift Munitions 82%
Lands (20)
  • 2 Ancient Den 91%
  • 4 Drossforge Bridge 100%
  • 1 Goldmire Bridge 73%
  • 1 Great Furnace 91%
  • 2 Mountain 100%
  • 2 Plains 100%
  • 3 Rustvale Bridge 100%
  • 2 Shattered Landscape 100%
  • 2 Swamp 100%
  • 1 Vault of Whispers 91%

Sideboard (15)

  • 2 Krark-Clan Shaman 82%
  • 2 Navigator's Compass 82%
  • 2 Nihil Spellbomb 91%
  • 1 Pyroblast 91%
  • 2 Red Elemental Blast 64%
  • 1 Thraben Charm 91%
  • 1 Tithing Blade // Consuming Sepulcher 82%
  • 3 Dust to Dust 82%
  • 1 Thorn of the Black Rose 45%
Glint Hawk
Point to a card to read its copies. Bright names are in 80% of lists or more. Dim names are still argued over.

Who plays it top MTGO pilots in this window. Paper lists count in the numbers above, not here

Method

A slot is one card in the average list. For each card, we count the lists that play at least one copy, then at least two, then at least three. We add those shares. Add every card and the boards total 60 and 15.

The settled bound is chosen at 80% of published lists. Settled slots are grey. Other slots are violet. Cards in fewer than 10% of lists still count in the argued-over total, but their rows are not shown.

The band bounds are chosen. Locked starts at 60 settled slots out of 75. Consolidated starts at 50. Debated starts at 40. Open is below 40. A locked deck is not a better deck.

Share is share of published decklists, not of the field. Each list counts once, paper or MTGO. No platform and no event is weighted. An Arena event we add by hand counts here too.

The two platforms publish different lists. A paper event on Melee publishes almost every player's list. An MTGO Challenge publishes 32 lists, whatever its size, and those lists lean to the top of the standings. So paper and MTGO together mix almost the whole paper field with MTGO's top finishers. One big paper event can be a large part of a window. Pick MTGO or Paper to see one platform alone.

Leagues publish 5–0 decklists and no match data. Deck counts and shares count them, because a registered list is a registered list. Win rates cannot, because a League has no matches. So counts and shares cover all published decklists, and win rates cover events with match data only.

Preliminaries contribute nothing. They publish match records but no decklists, so their matches have no archetype to attach to.

Win rates count only matches where both players published a decklist. With both sides counted, every win has a matching loss, so the pool always balances at exactly 50% wins.

On paper, almost every match has both lists, so a paper win rate measures a deck against the whole field. On MTGO, the published lists are the top finishers, so an MTGO win rate measures a deck among the top finishers. Paper and MTGO together mix the two.