I think this idea first came out in 2017, but I’ve never seen people with it. Basically you can use two commanders of the same lore identity but in different time period/timeline, such as Teferi. The rules are as follow:
1) Players still have a 100-card singleton deck (except for basic lands)
2) Instead of one legendary creature for a commander, QC decks have up to two commanders, as long as both creatures flavorfully represent alternate versions of the same character
QC decks may contain cards that match the color identity of the combined commanders
3) Players may only have one of their commanders on the battlefield at a time (we don’t want any paradoxes, after all)
4) If a player has one of their commanders on the battlefield, casting their other commander results in exiling the first, and sending it to the Command Zone (regardless of who controls the creature at the time)
5) When a commander is in play, its owner may not cast any spells from their hand in colors outside of that commander’s color identity
6) A player can only win the game when one of their commanders is on the battlefield (though not necessarily under their control)
7) As long as one commander is a legal EDH commander, its pair may be any permanent type as long as it flavorfully represents the same character (so for example, if a character is represented on both a legendary creature and a planeswalker card, a QC deck could have both cards as its two commanders)
8) When a player has neither of their commanders on the battlefield, their deck is in “superposition,” and can cast any spells available.
When a commander is on the battlefield, the deck loses “superposition” and its owner may not cast any spells in colors outside of that commander’s color identity
8) When a player has neither of their commanders on the battlefield, their deck is in “superposition,” and can cast any spells available.
When a commander is on the battlefield, the deck loses “superposition” and its owner may not cast any spells in colors outside of that commander’s color identity
This is absurdly punishing to commanders of different colors (e.g. Mirri/Mirri) as opposed to a pair of commanders in the same color(s) (Teferi). Just drop these.
6) A player can only win the game when one of their commanders is on the battlefield (though not necessarily under their control)
What happens if I win when my commander isn't on the battlefield? What if all my opponents lose? Is it a draw? Can nobody lose unless everyone's commander is on the battlefield? Drop this rule too. It has nothing to do with the idea of a 'Quantum' commander.
8) When a player has neither of their commanders on the battlefield, their deck is in “superposition,” and can cast any spells available.
When a commander is on the battlefield, the deck loses “superposition” and its owner may not cast any spells in colors outside of that commander’s color identity
This is absurdly punishing to commanders of different colors (e.g. Mirri/Mirri) as opposed to a pair of commanders in the same color(s) (Teferi). Just drop these.
6) A player can only win the game when one of their commanders is on the battlefield (though not necessarily under their control)
What happens if I win when my commander isn't on the battlefield? What if all my opponents lose? Is it a draw? Can nobody lose unless everyone's commander is on the battlefield? Drop this rule too. It has nothing to do with the idea of a 'Quantum' commander.
I didn't invent the rules, just C&P from another site. I think the extra limitation is there to balance out the benefits of having two commanders at once. This format is more for flavor than hardcore gameplay, I think.
1) Players still have a 100-card singleton deck (except for basic lands)
2) Instead of one legendary creature for a commander, QC decks have up to two commanders, as long as both creatures flavorfully represent alternate versions of the same character
QC decks may contain cards that match the color identity of the combined commanders
3) Players may only have one of their commanders on the battlefield at a time (we don’t want any paradoxes, after all)
4) If a player has one of their commanders on the battlefield, casting their other commander results in exiling the first, and sending it to the Command Zone (regardless of who controls the creature at the time)
5) When a commander is in play, its owner may not cast any spells from their hand in colors outside of that commander’s color identity
6) A player can only win the game when one of their commanders is on the battlefield (though not necessarily under their control)
Have people tried this format before?
Shu Yun, the Silent Tempest WUR Voltron Control
Temmet, Vizier of Naktamun WU Unblockable Mirror Trickery
Ra's al Ghul (Sidar Kondo) and Face-Down Ninjas
Brudiclad, Token Engineer
Vaevictis (VV2) the Dire Lantern
Rona, Disciple of Gix
Tiana the Auror
Hallar
Ulrich the Politician
Zur the Rebel
Scorpion, Locust, Scarab, Egyptian Gods
O-Kagachi, Mathas, Mairsil
"Non-Tribal" Tribal Generals, Eggs
7) As long as one commander is a legal EDH commander, its pair may be any permanent type as long as it flavorfully represents the same character (so for example, if a character is represented on both a legendary creature and a planeswalker card, a QC deck could have both cards as its two commanders)
8) When a player has neither of their commanders on the battlefield, their deck is in “superposition,” and can cast any spells available.
When a commander is on the battlefield, the deck loses “superposition” and its owner may not cast any spells in colors outside of that commander’s color identity
Shu Yun, the Silent Tempest WUR Voltron Control
Temmet, Vizier of Naktamun WU Unblockable Mirror Trickery
Ra's al Ghul (Sidar Kondo) and Face-Down Ninjas
Brudiclad, Token Engineer
Vaevictis (VV2) the Dire Lantern
Rona, Disciple of Gix
Tiana the Auror
Hallar
Ulrich the Politician
Zur the Rebel
Scorpion, Locust, Scarab, Egyptian Gods
O-Kagachi, Mathas, Mairsil
"Non-Tribal" Tribal Generals, Eggs
What happens if I win when my commander isn't on the battlefield? What if all my opponents lose? Is it a draw? Can nobody lose unless everyone's commander is on the battlefield? Drop this rule too. It has nothing to do with the idea of a 'Quantum' commander.
- Rabid Wombat
I didn't invent the rules, just C&P from another site. I think the extra limitation is there to balance out the benefits of having two commanders at once. This format is more for flavor than hardcore gameplay, I think.
Shu Yun, the Silent Tempest WUR Voltron Control
Temmet, Vizier of Naktamun WU Unblockable Mirror Trickery
Ra's al Ghul (Sidar Kondo) and Face-Down Ninjas
Brudiclad, Token Engineer
Vaevictis (VV2) the Dire Lantern
Rona, Disciple of Gix
Tiana the Auror
Hallar
Ulrich the Politician
Zur the Rebel
Scorpion, Locust, Scarab, Egyptian Gods
O-Kagachi, Mathas, Mairsil
"Non-Tribal" Tribal Generals, Eggs