Necrotic Ooze
Endling
Walking Ballista
Phyrexian Altar

   Prerequisites

What do I need to start this combo?
Necrotic Ooze and Phyrexian Altar on the battlefield.
Endling and Walking Ballista in your graveyard.
available

   Steps

How does this combo work?
1
Activate Necrotic Ooze using Endling's third ability by paying , giving Necrotic Ooze undying until end of turn.
2
If Necrotic Ooze has any +1/+1 counters, activate it using Walking Ballista's second ability by removing a +1/+1 counter from it, dealing 1 damage to any target.
3
Repeat step 2 until Necrotic Ooze has no +1/+1 counters.
4
Activate Phyrexian Altar by sacrificing Necrotic Ooze, adding .
5
Necrotic Ooze dies, triggering its undying ability, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
6
Repeat.

   Results

What do I get from this combo?
Infinite damage
Infinite death triggers
Infinite ETB
Infinite LTB
Infinite sacrifice triggers
Baron Helmut Zemo
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Top Commanders
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High Synergy Cards
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Utility Artifacts
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Enchantments
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Utility Lands
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Otawara, Soaring City
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Mana Artifacts
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22%synergy
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Mox Diamond
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Commander's Sphere
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Thought Vessel
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Lion's Eye Diamond
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10%synergy
Mox Opal
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8%synergy
Mana Vault
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6%synergy
Lands
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62%synergy
Blood Crypt
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51%synergy
Watery Grave
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Xander's Lounge
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63%synergy
Training Center
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61%synergy
Riverpyre Verge
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Overgrown Tomb
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39%synergy
Luxury Suite
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54%synergy
Morphic Pool
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54%synergy
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36%synergy
Command Tower
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Dragonskull Summit
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32%synergy
Llanowar Wastes
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33%synergy
Thundering Falls
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48%synergy
Blazemire Verge
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46%synergy
Raucous Theater
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45%synergy
Drowned Catacomb
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26%synergy
Gloomlake Verge
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41%synergy
Undercity Sewers
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33%synergy
Badlands
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31%synergy
Haunted Ridge
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28%synergy
Volcanic Island
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29%synergy
Bloodstained Mire
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29%synergy
Polluted Delta
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28%synergy
Underground Sea
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19%synergy
Underground River
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11%synergy
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20%synergy
Verdant Catacombs
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17%synergy
Reflecting Pool
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19%synergy
Mana Confluence
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Marsh Flats
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13%synergy
Scalding Tarn
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13%synergy
Exotic Orchard
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-13%synergy
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5%synergy
Prismatic Vista
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11%synergy
Gemstone Caverns
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11%synergy
Misty Rainforest
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5%synergy
Evolving Wilds
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-5%synergy
Forbidden Orchard
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10%synergy
Cavern of Souls
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5%synergy
Windswept Heath
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1%synergy
Terramorphic Expanse
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-3%synergy