Tainted Observer
Ashnod's Altar
Scurry Oak

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield.
You have a way to cause a creature to enter the battlefield under your control. Scurry Oak has at least one +1/+1 counter on it.

   Steps

How does this combo work?
1
Cause a creature to enter the battlefield under your control.
2
When the creature enters the battlefield, Tainted Observer triggers.
3
Holding priority, activate Ashnod's Altar by sacrificing the creature, adding .
4
Resolve the Tainted Observer trigger, causing you to pay 2 to put a +1/+1 counter on Scurry Oak.
5
Scurry Oak triggers, creating a 1/1 Squirrel creature token.
6
Repeat from step 2.

   Results

What do I get from this combo?
Infinite +1/+1 counters on Scurry Oak
Infinite death triggers
Infinite ETB
Infinite LTB
Infinite proliferate
Infinite sacrifice triggers
Xavier Sal, Infested Captain
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High Synergy Cards
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61%inclusion19 decks31 decks
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55%inclusion17 decks31 decks
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Top Cards
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37%synergy
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34%synergy
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Creatures
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Instants
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Utility Artifacts
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Enchantments
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Hardened Scales
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Gutter Grime
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3%synergy
Planeswalkers
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25%synergy
Vraska, Betrayal's Sting
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21%synergy
Liliana, Dreadhorde General
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19%synergy
Vraska, Golgari Queen
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16%synergy
Vraska, Relic Seeker
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13%synergy
Nissa, Voice of Zendikar
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12%synergy
Kiora, Behemoth Beckoner
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10%synergy
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Utility Lands
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33%synergy
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29%inclusion9 decks31 decks
20%synergy
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26%inclusion8 decks31 decks
21%synergy
Reliquary Tower
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19%inclusion6 decks31 decks
-1%synergy
Hickory Woodlot
16%inclusion5 decks31 decks
16%synergy
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14%synergy
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13%synergy
Bojuka Bog
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Tyrite Sanctum
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Oran-Rief, the Vastwood
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9%synergy
Alchemist's Refuge
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7%synergy
Diamond City
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10%synergy
Mage-Ring Network
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9%synergy
Dark Depths
10%inclusion3 decks31 decks
8%synergy
Dryad Arbor
10%inclusion3 decks31 decks
6%synergy
Urborg, Tomb of Yawgmoth
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Mosswort Bridge
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Boseiju, Who Endures
10%inclusion3 decks31 decks
-9%synergy
Mana Artifacts
Sol Ring
71%inclusion22 decks31 decks
-13%synergy
Arcane Signet
55%inclusion17 decks31 decks
-17%synergy
Astral Cornucopia
42%inclusion13 decks31 decks
41%synergy
Everflowing Chalice
42%inclusion13 decks31 decks
38%synergy
Staff of Compleation
26%inclusion8 decks31 decks
25%synergy
Aetheric Amplifier
25%inclusion3 decks12 decks
24%synergy
Pentad Prism
16%inclusion5 decks31 decks
16%synergy
Simic Signet
16%inclusion5 decks31 decks
4%synergy
Golgari Signet
14%inclusion3 decks22 decks
3%synergy
Dimir Signet
14%inclusion3 decks22 decks
-12%synergy
Glistening Sphere
10%inclusion3 decks31 decks
9%synergy
Replicating Ring
10%inclusion3 decks31 decks
8%synergy
Patriar's Seal
10%inclusion3 decks31 decks
8%synergy
Midnight Clock
10%inclusion3 decks31 decks
5%synergy
Talisman of Curiosity
10%inclusion3 decks31 decks
-3%synergy
Fellwar Stone
10%inclusion3 decks31 decks
-11%synergy
Lands
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81%inclusion25 decks31 decks
6%synergy
Zagoth Triome
59%inclusion13 decks22 decks
31%synergy
Undergrowth Stadium
55%inclusion12 decks22 decks
31%synergy
Exotic Orchard
52%inclusion16 decks31 decks
15%synergy
Breeding Pool
52%inclusion16 decks31 decks
10%synergy
Watery Grave
50%inclusion11 decks22 decks
9%synergy
Rejuvenating Springs
48%inclusion15 decks31 decks
21%synergy
Overgrown Tomb
45%inclusion10 decks22 decks
5%synergy
Woodland Cemetery
41%inclusion9 decks22 decks
10%synergy
Hinterland Harbor
39%inclusion12 decks31 decks
6%synergy
Morphic Pool
36%inclusion8 decks22 decks
12%synergy
Misty Rainforest
35%inclusion11 decks31 decks
24%synergy
Yavimaya Coast
35%inclusion11 decks31 decks
8%synergy
Undercity Sewers
35%inclusion7 decks20 decks
24%synergy
Dreamroot Cascade
32%inclusion10 decks31 decks
11%synergy
Underground Mortuary
30%inclusion6 decks20 decks
17%synergy
Verdant Catacombs
29%inclusion9 decks31 decks
18%synergy
Hedge Maze
28%inclusion8 decks29 decks
17%synergy
Shipwreck Marsh
27%inclusion6 decks22 decks
9%synergy
Drowned Catacomb
27%inclusion6 decks22 decks
-2%synergy
Deathcap Glade
23%inclusion5 decks22 decks
10%synergy
Llanowar Wastes
23%inclusion5 decks22 decks
-4%synergy
Opulent Palace
23%inclusion5 decks22 decks
-5%synergy
Sunken Hollow
23%inclusion5 decks22 decks
-11%synergy
Polluted Delta
23%inclusion7 decks31 decks
11%synergy
Simic Growth Chamber
23%inclusion7 decks31 decks
4%synergy
Barkchannel Pathway
19%inclusion6 decks31 decks
12%synergy
Bayou
18%inclusion4 decks22 decks
5%synergy
Underground Sea
18%inclusion4 decks22 decks
4%synergy
Golgari Rot Farm
18%inclusion4 decks22 decks
1%synergy
Brokers Hideout
16%inclusion5 decks31 decks
15%synergy
Vivid Marsh
14%inclusion3 decks22 decks
13%synergy
Blooming Marsh
14%inclusion3 decks22 decks
9%synergy
Necroblossom Snarl
14%inclusion3 decks22 decks
2%synergy
Temple of Deceit
14%inclusion3 decks22 decks
-1%synergy
Underground River
14%inclusion3 decks22 decks
-9%synergy
City of Brass
13%inclusion4 decks31 decks
5%synergy
Tropical Island
13%inclusion4 decks31 decks
-1%synergy
Flooded Grove
13%inclusion4 decks31 decks
-2%synergy
Evolving Wilds
13%inclusion4 decks31 decks
-8%synergy
Overflowing Basin
11%inclusion3 decks28 decks
3%synergy
Waterlogged Grove
10%inclusion3 decks31 decks
3%synergy
Mana Confluence
10%inclusion3 decks31 decks
3%synergy
Thornwood Falls
10%inclusion3 decks31 decks
3%synergy
Windswept Heath
10%inclusion3 decks31 decks
-1%synergy
Vineglimmer Snarl
10%inclusion3 decks31 decks
-1%synergy
Flooded Strand
10%inclusion3 decks31 decks
-2%synergy
Terramorphic Expanse
10%inclusion3 decks31 decks
-6%synergy
Temple of Mystery
10%inclusion3 decks31 decks
-7%synergy