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.