A
Aneximines
Guest
Of all the things you can get arbitrarily many of, turns is my favorite. Here are all the ways I know to take limitless consecutive turns:
Time sorceries - Time Walk, Time Warp, Beacon of Tomorrows, Time Stretch:
Time sorcery + Panoptic Mirror
Time sorcery + Spellweaver Helix +
a buyback sorcery (Seething Anger, Lab Rats), Revive, Relearn, or Burning Wish
Time sorcery + Planar Portal + Soldevi Digger
Time sorcery + an empty library (Hermit Druid, Leveler, etc.) + Anurid Scavenger/Soldevi Digger/etc.
Time sorcery + Eternal Witness/Anarchist + Soul Foundry/Sunken Hope/Crystal Shard/Erratic Portal/Vedalken Mastermind/etc.
Time sorcery + Isochron Scepter + Reap + Distorting Lens
Time sorcery + Isochron Scepter + Reclaim (+ card drawing)
Time sorcery + limitless mana (that can be blue) + Mischievous Quanar
(note: Final Fortune can usually work in place of time sorcery if you control a Time Vault)
Beacon of Tomorrows +
--Leveler, and other library-removing effects
--Planar Portal
--Bringer of the Black Dawn
--Isochron Scepter with Mystical Tutor or Vampiric Tutor
--Spellweaver Helix + Demonic Tutor/Diabolic Tutor
Final Fortune + Isochron Scepter/Panoptic Mirror +
--Time Vault
--Platinum Angel
--Stifle + Isochron Scepter/Panoptic Mirror
--Time Stop + Panoptic Mirror (you only get upkeeps, though)
Second Chance + enchantment recursion.
For the recursion, you could use Hanna, Ships Navigator, Skull of Orm, Eternal Witness + Soul Foundry, or Hells Caretaker + 2 Auramancers.
To get/keep your life low, you could use Wall of Blood, Mischievous Poltergeist, Ethereal Champion, Form of the Dragon, or Spatial Binding. It might be a good idea to have Worship or Ivory Mask out to ward off direct damage.
Magistrates Scepter + Pemmins Aura on Aphetto Alchemist + a creature or artifact that you can tap for at least (Gilded Lotus, Wirewood Channeler and another elf, Lumengrid + Fertile Ground, Nantuko Elder + Mycosynth Lattice, Metalworker + Gemstone Array, etc.)
Magistrates Scepter + Coretapper +
--Skeleton Shard
--Dawn of the Dead + Leonin Elder/Scrapheap/etc.
--Lifeline + another creature
Magistrates Scepter + Energy Chambers, Coretappers, and Power Conduit s
4 Magistrates Scepters (Copy Artifact, Sculpting Steel) (stagger them so that each turn one of them is ready to produce an extra turn)
Wormfang Manta +
--Vanishing
--Vodalian Illusionist
--Reality Ripple in a Scepter
--Teferis Veil (+ Maze of Ith or something if there are flying blockers)
--2 Teferis Curses + another Wormfang Manta
(Phasing triggers leaves-play abilities but not comes-into-play abilities.)
--Endless Whispers + a sacrificial tool (Altar of Dementia, etc.) + a way to steal the Manta each turn (Vedalken Shackles, Rubinia Soulsinger, Rootwater Matriarch + Slow Motion, etc.)
Mindslaver + Lethal Vapors + Vedalken Orrery, Vernal Equinox, Abeyance, or City of Solitude
Mindslaver + Time Vault + Donate
Mindslaver can also let you control all of your opponent's turns. For example:
Mindslaver + Goblin Welder + Nuisance Engine (or any source of artifacts)
Mindslaver + Bringer of the White Dawn
Mindslaver + Hanna, Ships Navigator
Mindslaver + Panoptic Mirror + Argivian Restoration
Timesifter + Panoptic Mirror + Living Wish + Penance + Draco
Timesifter + Spellweaver Helix (Imprinted with Seething Anger and Living Wish) + Putrid Imp + Haunted Crossroads + Draco
(there is a small chance that your opponent will reveal a Draco. If this worries you try Extract or Jesters Cap)
Unstable Hulk + Donate + Break Open-in-a-Scepter + Backslide-in-a-Scepter
Seedtime-in-a-Scepter + Sleight of Mind + Celestial Dawn + Healing Salve-in-a-Scepter + Phage + Shades Form/Summoners Egg + 3 Donates + Aphetto Alchemist + Argothian Elder + a way to deal four damage to a creature each turn (Donate the Sleighted Dawn, Healing Scepter and the Shade's Form that's on Phage or the Egg containing Phage; damage Phage or the Egg to death each turn; if they don't save it with the Healing Scepter they lose, if they do, play Seedtime; untap their Scepter and lands with the Alchemist and Elder)
By the way, you can avoid decking yourself with draw phases with
Soldevi Digger
Tel-jilad Stylus
Words of Wilding, War, Waste, Wind, and Worship
Obstinate Familiar
Platinum Angel
Pursuit of Knowledge
2 Reminisces
2 Paradigm Shifts
Yawgmoth's Bargain
Necropotence
Symbiotic Development
Recycle (don't play cards on an empty library, though)
Parallel Thoughts
Mangaras Tome
Ivory Gargoyle + something to sacrifice to
Legacy Weapon, Serra Avatar, or Darksteel Colossus + a way to discard (Putrid Imp, Dawnstrider, etc.)
This is all I know of. Contributions would be appreciated.
Time sorceries - Time Walk, Time Warp, Beacon of Tomorrows, Time Stretch:
Time sorcery + Panoptic Mirror
Time sorcery + Spellweaver Helix +
a buyback sorcery (Seething Anger, Lab Rats), Revive, Relearn, or Burning Wish
Time sorcery + Planar Portal + Soldevi Digger
Time sorcery + an empty library (Hermit Druid, Leveler, etc.) + Anurid Scavenger/Soldevi Digger/etc.
Time sorcery + Eternal Witness/Anarchist + Soul Foundry/Sunken Hope/Crystal Shard/Erratic Portal/Vedalken Mastermind/etc.
Time sorcery + Isochron Scepter + Reap + Distorting Lens
Time sorcery + Isochron Scepter + Reclaim (+ card drawing)
Time sorcery + limitless mana (that can be blue) + Mischievous Quanar
(note: Final Fortune can usually work in place of time sorcery if you control a Time Vault)
Beacon of Tomorrows +
--Leveler, and other library-removing effects
--Planar Portal
--Bringer of the Black Dawn
--Isochron Scepter with Mystical Tutor or Vampiric Tutor
--Spellweaver Helix + Demonic Tutor/Diabolic Tutor
Final Fortune + Isochron Scepter/Panoptic Mirror +
--Time Vault
--Platinum Angel
--Stifle + Isochron Scepter/Panoptic Mirror
--Time Stop + Panoptic Mirror (you only get upkeeps, though)
Second Chance + enchantment recursion.
For the recursion, you could use Hanna, Ships Navigator, Skull of Orm, Eternal Witness + Soul Foundry, or Hells Caretaker + 2 Auramancers.
To get/keep your life low, you could use Wall of Blood, Mischievous Poltergeist, Ethereal Champion, Form of the Dragon, or Spatial Binding. It might be a good idea to have Worship or Ivory Mask out to ward off direct damage.
Magistrates Scepter + Pemmins Aura on Aphetto Alchemist + a creature or artifact that you can tap for at least (Gilded Lotus, Wirewood Channeler and another elf, Lumengrid + Fertile Ground, Nantuko Elder + Mycosynth Lattice, Metalworker + Gemstone Array, etc.)
Magistrates Scepter + Coretapper +
--Skeleton Shard
--Dawn of the Dead + Leonin Elder/Scrapheap/etc.
--Lifeline + another creature
Magistrates Scepter + Energy Chambers, Coretappers, and Power Conduit s
4 Magistrates Scepters (Copy Artifact, Sculpting Steel) (stagger them so that each turn one of them is ready to produce an extra turn)
Wormfang Manta +
--Vanishing
--Vodalian Illusionist
--Reality Ripple in a Scepter
--Teferis Veil (+ Maze of Ith or something if there are flying blockers)
--2 Teferis Curses + another Wormfang Manta
(Phasing triggers leaves-play abilities but not comes-into-play abilities.)
--Endless Whispers + a sacrificial tool (Altar of Dementia, etc.) + a way to steal the Manta each turn (Vedalken Shackles, Rubinia Soulsinger, Rootwater Matriarch + Slow Motion, etc.)
Mindslaver + Lethal Vapors + Vedalken Orrery, Vernal Equinox, Abeyance, or City of Solitude
Mindslaver + Time Vault + Donate
Mindslaver can also let you control all of your opponent's turns. For example:
Mindslaver + Goblin Welder + Nuisance Engine (or any source of artifacts)
Mindslaver + Bringer of the White Dawn
Mindslaver + Hanna, Ships Navigator
Mindslaver + Panoptic Mirror + Argivian Restoration
Timesifter + Panoptic Mirror + Living Wish + Penance + Draco
Timesifter + Spellweaver Helix (Imprinted with Seething Anger and Living Wish) + Putrid Imp + Haunted Crossroads + Draco
(there is a small chance that your opponent will reveal a Draco. If this worries you try Extract or Jesters Cap)
Unstable Hulk + Donate + Break Open-in-a-Scepter + Backslide-in-a-Scepter
Seedtime-in-a-Scepter + Sleight of Mind + Celestial Dawn + Healing Salve-in-a-Scepter + Phage + Shades Form/Summoners Egg + 3 Donates + Aphetto Alchemist + Argothian Elder + a way to deal four damage to a creature each turn (Donate the Sleighted Dawn, Healing Scepter and the Shade's Form that's on Phage or the Egg containing Phage; damage Phage or the Egg to death each turn; if they don't save it with the Healing Scepter they lose, if they do, play Seedtime; untap their Scepter and lands with the Alchemist and Elder)
By the way, you can avoid decking yourself with draw phases with
Soldevi Digger
Tel-jilad Stylus
Words of Wilding, War, Waste, Wind, and Worship
Obstinate Familiar
Platinum Angel
Pursuit of Knowledge
2 Reminisces
2 Paradigm Shifts
Yawgmoth's Bargain
Necropotence
Symbiotic Development
Recycle (don't play cards on an empty library, though)
Parallel Thoughts
Mangaras Tome
Ivory Gargoyle + something to sacrifice to
Legacy Weapon, Serra Avatar, or Darksteel Colossus + a way to discard (Putrid Imp, Dawnstrider, etc.)
This is all I know of. Contributions would be appreciated.