Devastating Onslaught
Mana Geyser
Timeless Witness

   Prerequisites

What do I need to start this combo?
Timeless Witness on the battlefield.
Devastating Onslaught and Mana Geyser in hand.
Opponents control at least ten tapped lands.
3 available

   Steps

How does this combo work?
1
Cast Mana Geyser by paying 3, adding for each tapped land your opponents control.
2
Cast Devastating Onslaught by paying 4, creating two token copies of Timeless Witness with haste.
3
When the Timeless Witness tokens enter, they trigger, returning Mana Geyser and Devastating Onslaught from your graveyard to your hand.
4
Repeat.

   Results

What do I get from this combo?
Infinite LTB
Infinite ETB
Infinite sacrifice triggers
Infinite death triggers
Infinite storm count
Infinite red mana
Infinite creature tokens with haste
Infinite magecraft triggers
The Reaper, King No More
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Gilanra, Caller of Wirewood // Jeska, Thrice Reborn
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Bjorna, Nightfall Alchemist // Elmar, Ulvenwald Informant
0.3%inclusion1 decks292 decks
Karlach, Fury of Avernus // Hardy Outlander
0.2%inclusion1 decks498 decks
New Cards
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50%inclusion1 decks2 decks
46%synergy
Hexing Squelcher
20%inclusion3 decks15 decks
11%synergy
Kindle the Inner Flame
20%inclusion3 decks15 decks
20%synergy
New Generation's Technique
13%inclusion1 decks8 decks
12%synergy
Tempestra, Dame of Games
11%inclusion1 decks9 decks
10%synergy
High Synergy Cards
Electroduplicate
69%inclusion18 decks26 decks
68%synergy
Twinflame
65%inclusion17 decks26 decks
63%synergy
Eternal Witness
73%inclusion19 decks26 decks
56%synergy
Jaxis, the Troublemaker
58%inclusion15 decks26 decks
56%synergy
The Fire Crystal
54%inclusion14 decks26 decks
50%synergy
Heat Shimmer
50%inclusion13 decks26 decks
49%synergy
Orthion, Hero of Lavabrink
50%inclusion13 decks26 decks
49%synergy
Goblin Anarchomancer
58%inclusion15 decks26 decks
46%synergy
Panharmonicon
42%inclusion11 decks26 decks
38%synergy
Rishkar's Expertise
42%inclusion11 decks26 decks
33%synergy
Top Cards
Cultivate
62%inclusion16 decks26 decks
19%synergy
Nature's Lore
58%inclusion15 decks26 decks
26%synergy
Blasphemous Act
54%inclusion14 decks26 decks
21%synergy
Beast Within
50%inclusion13 decks26 decks
16%synergy
Farseek
50%inclusion13 decks26 decks
14%synergy
Llanowar Elves
46%inclusion12 decks26 decks
26%synergy
Kodama's Reach
46%inclusion12 decks26 decks
19%synergy
Wild Growth
42%inclusion11 decks26 decks
32%synergy
Sakura-Tribe Elder
42%inclusion11 decks26 decks
26%synergy
Rhythm of the Wild
42%inclusion11 decks26 decks
21%synergy
Game Changers
Jeska's Will
50%inclusion13 decks26 decks
35%synergy
Crop Rotation
19%inclusion5 decks26 decks
9%synergy
Worldly Tutor
15%inclusion4 decks26 decks
3%synergy
Glacial Chasm
12%inclusion3 decks26 decks
11%synergy
Underworld Breach
12%inclusion3 decks26 decks
5%synergy
Creatures
Disciple of Freyalise
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37%synergy
Elvish Mystic
38%inclusion10 decks26 decks
23%synergy
Dualcaster Mage
35%inclusion9 decks26 decks
30%synergy
Delina, Wild Mage
31%inclusion8 decks26 decks
29%synergy
Pinnacle Monk
31%inclusion8 decks26 decks
26%synergy
Birds of Paradise
31%inclusion8 decks26 decks
3%synergy
Mirage Phalanx
27%inclusion7 decks26 decks
26%synergy
Rionya, Fire Dancer
27%inclusion7 decks26 decks
26%synergy
Treasonous Ogre
27%inclusion7 decks26 decks
26%synergy
Somberwald Sage
27%inclusion7 decks26 decks
25%synergy
Squee, the Immortal
27%inclusion7 decks26 decks
25%synergy
Hellkite Courser
27%inclusion7 decks26 decks
25%synergy
Etali, Primal Storm
27%inclusion7 decks26 decks
19%synergy
Fyndhorn Elves
27%inclusion7 decks26 decks
17%synergy
Temur Sabertooth
23%inclusion6 decks26 decks
21%synergy
Goreclaw, Terror of Qal Sisma
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19%synergy
Delighted Halfling
23%inclusion6 decks26 decks
11%synergy
Orcish Lumberjack
19%inclusion5 decks26 decks
17%synergy
Fanatic of Rhonas
19%inclusion5 decks26 decks
13%synergy
Roaming Throne
19%inclusion5 decks26 decks
13%synergy
Flamerush Rider
15%inclusion4 decks26 decks
15%synergy
Bramble Sovereign
15%inclusion4 decks26 decks
15%synergy
Hunting Velociraptor
15%inclusion4 decks26 decks
14%synergy
Plargg and Nassari
15%inclusion4 decks26 decks
14%synergy
Kiki-Jiki, Mirror Breaker
15%inclusion4 decks26 decks
13%synergy
Springheart Nantuko
15%inclusion4 decks26 decks
11%synergy
Terror of the Peaks
15%inclusion4 decks26 decks
10%synergy
Simian Spirit Guide
15%inclusion4 decks26 decks
10%synergy
Etali, Primal Conqueror
15%inclusion4 decks26 decks
8%synergy
Ardent Elementalist
12%inclusion3 decks26 decks
11%synergy
Trumpeting Carnosaur
12%inclusion3 decks26 decks
10%synergy
Tinder Wall
12%inclusion3 decks26 decks
8%synergy
Nyxbloom Ancient
12%inclusion3 decks26 decks
8%synergy
Priest of Titania
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8%synergy
Elvish Spirit Guide
12%inclusion3 decks26 decks
8%synergy
Wood Elves
12%inclusion3 decks26 decks
7%synergy
Birgi, God of Storytelling
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6%synergy
Ragavan, Nimble Pilferer
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4%synergy
Reclamation Sage
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3%synergy
Tireless Provisioner
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1%synergy
Formidable Speaker
11%inclusion2 decks19 decks
7%synergy
Village Pillagers
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5%synergy
Mutable Explorer
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4%synergy
Instants
Return of the Wildspeaker
38%inclusion10 decks26 decks
27%synergy
Chaos Warp
35%inclusion9 decks26 decks
5%synergy
Big Score
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20%synergy
Heroic Intervention
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Flare of Duplication
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20%synergy
Noxious Revival
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18%synergy
Red Elemental Blast
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17%synergy
Unexpected Windfall
23%inclusion6 decks26 decks
16%synergy
Veil of Summer
19%inclusion5 decks26 decks
14%synergy
Entish Restoration
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13%synergy
Seething Song
19%inclusion5 decks26 decks
13%synergy
Harrow
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10%synergy
Deflecting Swat
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2%synergy
Lifestream's Blessing
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14%synergy
Delayed Blast Fireball
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13%synergy
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13%synergy
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12%synergy
Krosan Grip
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10%synergy
Untimely Malfunction
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8%synergy
Desperate Ritual
12%inclusion3 decks26 decks
9%synergy
Tibalt's Trickery
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7%synergy
Archdruid's Charm
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7%synergy
Nature's Claim
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4%synergy
Unforgiving Aim
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Sorceries
Skyshroud Claim
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30%synergy
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Decimate
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Bala Ged Recovery
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11%synergy
Geosurge
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15%synergy
Glimpse the Impossible
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14%synergy
Call Forth the Tempest
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14%synergy
Sundering Eruption
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12%synergy
Explore
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6%synergy
Metamorphosis
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11%synergy
Imposing Grandeur
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11%synergy
Turntimber Symbiosis
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10%synergy
Rite of Flame
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8%synergy
Chain Reaction
12%inclusion3 decks26 decks
8%synergy
Stump Stomp
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6%synergy
Spry and Mighty
6.7%inclusion1 decks15 decks
6%synergy
Burning Curiosity
6.7%inclusion1 decks15 decks
6%synergy
Soul Immolation
6.7%inclusion1 decks15 decks
5%synergy
Utility Artifacts
Conjurer's Closet
35%inclusion9 decks26 decks
32%synergy
Blade of Selves
31%inclusion8 decks26 decks
29%synergy
Helm of the Host
27%inclusion7 decks26 decks
24%synergy
Lightning Greaves
15%inclusion4 decks26 decks
-9%synergy
Swiftfoot Boots
15%inclusion4 decks26 decks
-12%synergy
Lithoform Engine
12%inclusion3 decks26 decks
11%synergy
Enchantments
Utopia Sprawl
38%inclusion10 decks26 decks
31%synergy
Garruk's Uprising
27%inclusion7 decks26 decks
10%synergy
Mirror March
23%inclusion6 decks26 decks
22%synergy
Flameshadow Conjuring
23%inclusion6 decks26 decks
22%synergy
Food Chain
23%inclusion6 decks26 decks
21%synergy
Carpet of Flowers
15%inclusion4 decks26 decks
12%synergy
Warstorm Surge
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11%synergy
Sylvan Library
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6%synergy
Overgrowth
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10%synergy
Passionate Archaeologist
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10%synergy
Shadow in the Warp
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9%synergy
Parallel Lives
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5%synergy
World War Hulk
5.9%inclusion1 decks17 decks
6%synergy
Planeswalkers
Chandra, Flameshaper
27%inclusion7 decks26 decks
26%synergy
Utility Lands
Boseiju, Who Endures
38%inclusion10 decks26 decks
20%synergy
Command Beacon
31%inclusion8 decks26 decks
26%synergy
Kessig Wolf Run
31%inclusion8 decks26 decks
16%synergy
Yavimaya, Cradle of Growth
27%inclusion7 decks26 decks
18%synergy
Temple of the False God
27%inclusion7 decks26 decks
18%synergy
Rogue's Passage
27%inclusion7 decks26 decks
7%synergy
Reliquary Tower
23%inclusion6 decks26 decks
-7%synergy
Shifting Woodland
19%inclusion5 decks26 decks
12%synergy
Urza's Saga
15%inclusion4 decks26 decks
8%synergy
Evendo, Waking Haven
12%inclusion3 decks26 decks
7%synergy
Mana Artifacts
Sol Ring
92%inclusion24 decks26 decks
9%synergy
Arcane Signet
65%inclusion17 decks26 decks
-7%synergy
Cursed Mirror
58%inclusion15 decks26 decks
52%synergy
Talisman of Impulse
38%inclusion10 decks26 decks
28%synergy
Gruul Signet
35%inclusion9 decks26 decks
26%synergy
Fellwar Stone
23%inclusion6 decks26 decks
3%synergy
Thran Dynamo
15%inclusion4 decks26 decks
11%synergy
Lotus Petal
15%inclusion4 decks26 decks
8%synergy
Mind Stone
15%inclusion4 decks26 decks
1%synergy
Weather Maker
8.3%inclusion1 decks12 decks
8%synergy
Lands
Command Tower
92%inclusion24 decks26 decks
18%synergy
Stomping Ground
73%inclusion19 decks26 decks
32%synergy
Cinder Glade
65%inclusion17 decks26 decks
27%synergy
Rootbound Crag
58%inclusion15 decks26 decks
29%synergy
Wooded Foothills
54%inclusion14 decks26 decks
43%synergy
Spire Garden
46%inclusion12 decks26 decks
24%synergy
Gruul Turf
42%inclusion11 decks26 decks
28%synergy
Karplusan Forest
42%inclusion11 decks26 decks
22%synergy
Commercial District
38%inclusion10 decks26 decks
29%synergy
Exotic Orchard
38%inclusion10 decks26 decks
2%synergy
Rockfall Vale
35%inclusion9 decks26 decks
14%synergy
Temple of Abandon
31%inclusion8 decks26 decks
18%synergy
Thornspire Verge
27%inclusion7 decks26 decks
18%synergy
Taiga
27%inclusion7 decks26 decks
14%synergy
Game Trail
27%inclusion7 decks26 decks
12%synergy
Fire-Lit Thicket
23%inclusion6 decks26 decks
18%synergy
Cragcrown Pathway
23%inclusion6 decks26 decks
16%synergy
Mossfire Valley
23%inclusion6 decks26 decks
11%synergy
Sheltered Thicket
19%inclusion5 decks26 decks
10%synergy
Verdant Catacombs
15%inclusion4 decks26 decks
4%synergy
Bloodstained Mire
15%inclusion4 decks26 decks
4%synergy
Misty Rainforest
15%inclusion4 decks26 decks
4%synergy
Grove of the Burnwillows
12%inclusion3 decks26 decks
9%synergy
Talon Gates of Madara
12%inclusion3 decks26 decks
9%synergy
Highland Forest
12%inclusion3 decks26 decks
9%synergy
Wooded Ridgeline
12%inclusion3 decks26 decks
7%synergy
Scalding Tarn
12%inclusion3 decks26 decks
1%synergy
Terramorphic Expanse
12%inclusion3 decks26 decks
-3%synergy
Evolving Wilds
12%inclusion3 decks26 decks
-9%synergy
Path of Ancestry
12%inclusion3 decks26 decks
-11%synergy