Kotis, Sibsig Champion
Altar of Dementia
Timeless Witness

   Prerequisites

What do I need to start this combo?
Extra Turn Spell - GY on Resolution in hand.
All other permanents on the battlefield.
You have enough mana available each turn to cast the extra turn spell and enough mana each extra turn to cast Timeless Witness. You have not cast a spell using Kotis

   Steps

How does this combo work?
1
Cast the extra turn spell by paying its mana cost, causing you to take an extra turn after this one.
2
Move to your extra turn.
3
Activate Altar of Dementia by sacrificing Timeless Witness, causing you to mill cards equal to Timeless Witness's power.
4
Cast Timeless Witness from your graveyard by paying its mana cost and exiling three other cards from your graveyard, ensuring not to exile the extra turn spell.
5
When Timeless Witness enters the battlefield, it triggers, returning the extra turn spell from your graveyard to your hand.
6
Repeat.

   Results

What do I get from this combo?
Near-infinite turns
Sin, Spira's Punishment
0.44% of 2056 decks 9 decks
Top Commanders
Teval, the Balanced Scale
5.38% of 15003 decks 807 decks
Kotis, Sibsig Champion
8.25% of 582 decks 48 decks
Sidisi, Brood Tyrant
1.20% of 2422 decks 29 decks
Muldrotha, the Gravetide
0.08% of 7189 decks 6 decks
Teval, Arbiter of Virtue
0.15% of 3434 decks 5 decks
Tasigur, the Golden Fang
0.06% of 1816 decks 1 decks
Ravos, Soultender // Thrasios, Triton Hero
0.68% of 146 decks 1 decks
Glarb, Calamity's Augur
0.02% of 6402 decks 1 decks
The Master, Transcendent
0.10% of 1020 decks 1 decks
New Cards
Icetill Explorer
32% of 150 decks +26% synergy
Fang, Fearless l'Cie
8% of 473 decks +7% synergy
Vanille, Cheerful l'Cie
6% of 467 decks +5% synergy
Summon: Titan
6% of 422 decks +2% synergy
Singularity Rupture
4% of 183 decks +2% synergy
High Synergy Cards
Life from the Loam
93% of 908 decks +88% synergy
Teval's Judgment
90% of 908 decks +87% synergy
Colossal Grave-Reaver
91% of 908 decks +85% synergy
Hedron Crab
85% of 908 decks +83% synergy
Wonder
80% of 908 decks +77% synergy
Conduit of Worlds
82% of 908 decks +76% synergy
Stitcher's Supplier
78% of 908 decks +75% synergy
Living Death
79% of 908 decks +74% synergy
Will of the Sultai
75% of 908 decks +73% synergy
Ripples of Undeath
76% of 908 decks +72% synergy
Top Cards
Farseek
79% of 908 decks +44% synergy
Muldrotha, the Gravetide
78% of 908 decks +70% synergy
Six
77% of 908 decks +71% synergy
Victimize
75% of 908 decks +63% synergy
Gravecrawler
74% of 908 decks +70% synergy
Insidious Roots
73% of 908 decks +67% synergy
Sakura-Tribe Elder
72% of 908 decks +54% synergy
Kishla Skimmer
71% of 908 decks +68% synergy
Afterlife from the Loam
70% of 908 decks +69% synergy
Meren of Clan Nel Toth
69% of 908 decks +65% synergy
Game Changers
Field of the Dead
37% of 908 decks +34% synergy
Crop Rotation
22% of 908 decks +13% synergy
Cyclonic Rift
12% of 908 decks -13% synergy
Fierce Guardianship
8% of 908 decks -10% synergy
Rhystic Study
8% of 908 decks -18% synergy
Demonic Tutor
6% of 908 decks -14% synergy
Gifts Ungiven
6% of 908 decks +5% synergy
Creatures
Skull Prophet
66% of 908 decks +61% synergy
River Kelpie
64% of 908 decks +63% synergy
Kheru Goldkeeper
64% of 895 decks +58% synergy
Steward of the Harvest
63% of 908 decks +62% synergy
Sidisi, Brood Tyrant
62% of 908 decks +59% synergy
Nyx Weaver
62% of 908 decks +57% synergy
The Gitrog Monster
61% of 908 decks +55% synergy
Avenger of Zendikar
60% of 908 decks +51% synergy
Ob Nixilis, the Fallen
57% of 908 decks +55% synergy
Floral Evoker
54% of 908 decks +53% synergy
Eternal Witness
51% of 908 decks +33% synergy
Deathrite Shaman
49% of 908 decks +38% synergy
Shigeki, Jukai Visionary
49% of 908 decks +47% synergy
Syr Konrad, the Grim
47% of 908 decks +38% synergy
The Scarab God
46% of 908 decks +43% synergy
Aftermath Analyst
43% of 908 decks +39% synergy
Springbloom Druid
43% of 908 decks +39% synergy
Dauthi Voidwalker
36% of 908 decks +29% synergy
Lost Monarch of Ifnir
33% of 908 decks +31% synergy
Diviner of Mist
32% of 908 decks +32% synergy
Jarad, Golgari Lich Lord
31% of 908 decks +28% synergy
Satyr Wayfinder
31% of 908 decks +29% synergy
Ramunap Excavator
29% of 908 decks +22% synergy
Millikin
28% of 908 decks +27% synergy
Wight of the Reliquary
28% of 908 decks +22% synergy
Tatyova, Benthic Druid
27% of 908 decks +14% synergy
Tasigur, the Golden Fang
26% of 908 decks +25% synergy
Multani, Yavimaya's Avatar
25% of 908 decks +23% synergy
World Shaper
25% of 908 decks +22% synergy
Noxious Gearhulk
23% of 908 decks +20% synergy
Amphin Mutineer
23% of 908 decks +21% synergy
Tormod, the Desecrator
22% of 908 decks +21% synergy
Hermit Druid
21% of 908 decks +20% synergy
Craterhoof Behemoth
21% of 908 decks +14% synergy
Underrealm Lich
20% of 908 decks +17% synergy
Lotuslight Dancers
19% of 886 decks +16% synergy
Uro, Titan of Nature's Wrath
17% of 908 decks +12% synergy
Birds of Paradise
16% of 908 decks -11% synergy
Lord of Extinction
16% of 908 decks +14% synergy
Bloodghast
14% of 908 decks +12% synergy
Junji, the Midnight Sky
14% of 908 decks +11% synergy
Scute Swarm
12% of 908 decks +3% synergy
Disciple of Bolas
11% of 908 decks +9% synergy
Aesi, Tyrant of Gyre Strait
10% of 908 decks +4% synergy
Golgari Grave-Troll
10% of 908 decks +8% synergy
Overlord of the Balemurk
10% of 908 decks +8% synergy
Lumra, Bellow of the Woods
10% of 908 decks +7% synergy
Reassembling Skeleton
10% of 908 decks +6% synergy
Molt Tender
9% of 908 decks +9% synergy
Tireless Provisioner
9% of 908 decks -2% synergy
Instants
Tear Asunder
67% of 908 decks +60% synergy
Grapple with the Past
63% of 908 decks +62% synergy
Harrow
60% of 908 decks +51% synergy
Putrefy
55% of 908 decks +40% synergy
Lethal Scheme
52% of 908 decks +51% synergy
Assassin's Trophy
50% of 908 decks +20% synergy
Grisly Salvage
36% of 908 decks +31% synergy
Beast Within
28% of 908 decks -8% synergy
Forbidden Alchemy
25% of 908 decks +24% synergy
Counterspell
23% of 908 decks -20% synergy
Entomb
16% of 908 decks +8% synergy
An Offer You Can't Refuse
14% of 908 decks -9% synergy
Smuggler's Surprise
12% of 908 decks +10% synergy
Heroic Intervention
9% of 908 decks -21% synergy
Arcane Denial
8% of 908 decks -12% synergy
Auroral Procession
8% of 908 decks +5% synergy
Deadly Rollick
6% of 908 decks -6% synergy
Noxious Revival
6% of 908 decks +1% synergy
Fell the Profane
6% of 908 decks -3% synergy
Sorceries
Welcome the Dead
59% of 908 decks +59% synergy
Rampant Growth
57% of 908 decks +23% synergy
Reanimate
56% of 908 decks +38% synergy
Dread Return
55% of 908 decks +50% synergy
Cultivate
47% of 908 decks +3% synergy
Treasure Cruise
31% of 908 decks +26% synergy
Nature's Lore
28% of 908 decks -4% synergy
Necromantic Selection
27% of 908 decks +26% synergy
Casualties of War
27% of 908 decks +22% synergy
Three Visits
18% of 908 decks -7% synergy
Toxic Deluge
16% of 908 decks -2% synergy
Malevolent Rumble
12% of 908 decks +11% synergy
Buried Alive
12% of 908 decks +6% synergy
Bala Ged Recovery
12% of 908 decks +4% synergy
Death Begets Life
10% of 908 decks +7% synergy
Rise of the Dark Realms
9% of 908 decks +5% synergy
Breach the Multiverse
8% of 908 decks +4% synergy
Rise of the Witch-king
7% of 908 decks +2% synergy
Lich-Knights' Conquest
5% of 908 decks +3% synergy
Utility Artifacts
Hedge Shredder
60% of 908 decks +57% synergy
Lightning Greaves
29% of 908 decks +4% synergy
Phyrexian Altar
25% of 908 decks +22% synergy
Essence Anchor
17% of 908 decks +17% synergy
Mesmeric Orb
15% of 908 decks +14% synergy
Elixir of Immortality
14% of 908 decks +13% synergy
Crucible of Worlds
11% of 908 decks +9% synergy
Ashnod's Altar
9% of 908 decks +2% synergy
Cursecloth Wrappings
9% of 908 decks +8% synergy
Agatha's Soul Cauldron
7% of 908 decks +6% synergy
Perpetual Timepiece
6% of 908 decks +5% synergy
Enchantments
Phyrexian Reclamation
67% of 908 decks +64% synergy
Titans' Nest
46% of 908 decks +45% synergy
Tortured Existence
44% of 908 decks +42% synergy
Crawling Sensation
36% of 908 decks +34% synergy
Animate Dead
25% of 908 decks +15% synergy
Awaken the Honored Dead
22% of 908 decks +18% synergy
Glacierwood Siege
13% of 908 decks +11% synergy
Oversold Cemetery
9% of 908 decks +7% synergy
Walk-In Closet // Forgotten Cellar
9% of 908 decks +6% synergy
Out of the Tombs
6% of 908 decks +5% synergy
Exploration
5% of 908 decks -3% synergy
Spelunking
5% of 908 decks +1% synergy
Planeswalkers
Grist, the Hunger Tide
5% of 908 decks +1% synergy
Utility Lands
Command Beacon
72% of 908 decks +67% synergy
Cephalid Coliseum
67% of 908 decks +64% synergy
Memorial to Folly
53% of 908 decks +52% synergy
Drownyard Temple
49% of 908 decks +48% synergy
Crypt of Agadeem
41% of 908 decks +40% synergy
Shifting Woodland
35% of 908 decks +28% synergy
Takenuma, Abandoned Mire
26% of 908 decks +17% synergy
Boseiju, Who Endures
24% of 908 decks +5% synergy
Bojuka Bog
20% of 908 decks -10% synergy
Yavimaya, Cradle of Growth
19% of 908 decks +11% synergy
Dakmor Salvage
19% of 908 decks +16% synergy
Urborg, Tomb of Yawgmoth
18% of 908 decks +9% synergy
Ghost Quarter
17% of 908 decks +15% synergy
Otawara, Soaring City
12% of 908 decks -4% synergy
Strip Mine
12% of 908 decks +10% synergy
Kishla Village
11% of 908 decks +10% synergy
Mistrise Village
10% of 908 decks +2% synergy
Phyrexian Tower
10% of 908 decks +1% synergy
Lotus Field
9% of 908 decks +8% synergy
Cabal Coffers
6% of 908 decks -4% synergy
Reliquary Tower
5% of 908 decks -25% synergy
Mana Artifacts
Sol Ring
91% of 908 decks +7% synergy
Arcane Signet
81% of 908 decks +9% synergy
Lands
Command Tower
98% of 908 decks +23% synergy
Woodland Cemetery
83% of 908 decks +52% synergy
Hinterland Harbor
80% of 908 decks +49% synergy
Exotic Orchard
80% of 908 decks +44% synergy
Dreamroot Cascade
77% of 908 decks +57% synergy
Opulent Palace
72% of 908 decks +44% synergy
Llanowar Wastes
68% of 908 decks +42% synergy
Sunken Hollow
65% of 908 decks +31% synergy
Foreboding Landscape
62% of 908 decks +53% synergy
Overgrown Tomb
52% of 908 decks +11% synergy
Terramorphic Expanse
51% of 908 decks +36% synergy
Watery Grave
50% of 908 decks +10% synergy
Breeding Pool
49% of 908 decks +8% synergy
Golgari Rot Farm
47% of 908 decks +30% synergy
Polluted Delta
47% of 908 decks +35% synergy
Zagoth Triome
46% of 908 decks +17% synergy
Verdant Catacombs
45% of 908 decks +34% synergy
Misty Rainforest
45% of 908 decks +33% synergy
Fetid Pools
42% of 908 decks +35% synergy
Darkwater Catacombs
38% of 908 decks +23% synergy
Myriad Landscape
36% of 908 decks +18% synergy
Underground Mortuary
33% of 908 decks +21% synergy
Undergrowth Stadium
32% of 908 decks +7% synergy
Hedge Maze
30% of 908 decks +19% synergy
Rejuvenating Springs
29% of 908 decks +1% synergy
Fabled Passage
28% of 908 decks +19% synergy
Haunted Mire
27% of 908 decks +20% synergy
Undercity Sewers
27% of 908 decks +16% synergy
Temple of Malady
24% of 908 decks +7% synergy
Morphic Pool
21% of 908 decks -5% synergy
Drowned Catacomb
18% of 908 decks -10% synergy
Contaminated Aquifer
17% of 908 decks +13% synergy
Deathcap Glade
14% of 908 decks +1% synergy
Yavimaya Coast
14% of 908 decks -14% synergy
Shipwreck Marsh
13% of 908 decks -6% synergy
Evolving Wilds
11% of 908 decks -9% synergy
Blighted Woodland
11% of 908 decks +7% synergy
Wastewood Verge
10% of 908 decks +4% synergy
Underground River
10% of 908 decks -12% synergy
Bayou
8% of 908 decks -5% synergy
Underground Sea
8% of 908 decks -6% synergy
Tropical Island
8% of 908 decks -6% synergy
Willowrush Verge
8% of 908 decks +1% synergy
Windswept Heath
8% of 908 decks -3% synergy
Flooded Strand
7% of 908 decks -4% synergy
Wooded Foothills
7% of 908 decks -4% synergy
Gloomlake Verge
7% of 908 decks -2% synergy
Marsh Flats
6% of 908 decks -4% synergy
Bloodstained Mire
6% of 908 decks -5% synergy
Dimir Aqueduct
6% of 908 decks -10% synergy