Satoru Umezawa
Great Whale
Prosperous Thief

   Prerequisites

What do I need to start this combo?
Great Whale in hand.
Satoru Umezawa and Prosperous Thief on the battlefield.
Prosperous Thief does not have summoning sickness and cannot be blocked by an opponent. You control up to seven lands that can tap to produce at least 3.

   Steps

How does this combo work?
1
Declare Prosperous Thief as an attacker.
2
When it isn't blocked, activate up to seven lands you control by tapping them, adding at least 3.
3
Activate Great Whale's ninjutsu ability by paying 2 and returning Prosperous Thief from the battlefield to your hand, putting Great Whale onto the battlefield from your hand tapped and attacking.
4
When Great Whale enters the battlefield, it triggers, untapping up to seven lands.
5
Activate Prosperous Thief's ninjutsu ability by paying 1 and returning Great Whale from the battlefield to your hand, putting Prosperous Thief onto the battlefield from your hand tapped and attacking.
6
Repeat from step 2.
7
If you control up to seven lands that can tap to produce at least 4, this combo nets infinite mana.

   Results

What do I get from this combo?
Infinite ETB
Infinite LTB
Infinite mana lands you control can produce
Infinite untap of lands you control
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High Synergy Cards
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Dispel
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Snap
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Ponder
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Preordain
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38%inclusion190 decks497 decks
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Utility Lands
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55%inclusion305 decks556 decks
Reliquary Tower
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Otawara, Soaring City
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Bojuka Bog
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17%inclusion3 decks18 decks
Ancient Tomb
13%inclusion75 decks556 decks
Halimar Depths
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Urza's Saga
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Command Beacon
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Secret Tunnel
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The Black Gate
6.1%inclusion34 decks556 decks
Realm of Koh
6.0%inclusion13 decks215 decks
Minas Morgul, Dark Fortress
5.9%inclusion33 decks556 decks
Mana Artifacts
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Arcane Signet
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Dimir Signet
54%inclusion302 decks556 decks
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Chrome Mox
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Mind Stone
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Commander's Sphere
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Mox Diamond
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Mana Vault
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Mox Opal
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Decanter of Endless Water
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Lands
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Undergrowth Stadium
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Steam Vents
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Sunken Hollow
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Watery Grave
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Drowned Catacomb
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Godless Shrine
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Morphic Pool
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Xander's Lounge
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Blood Crypt
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Hallowed Fountain
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Overgrown Tomb
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Polluted Delta
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Shipwreck Marsh
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Underground River
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Arcane Sanctum
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Glacial Fortress
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Tainted Isle
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Choked Estuary
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Isolated Chapel
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Exotic Orchard
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Dimir Aqueduct
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Raffine's Tower
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Clearwater Pathway
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Gloomlake Verge
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Temple of Deceit
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Vault of Champions
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Sea of Clouds
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Prairie Stream
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Underground Sea
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Darkslick Shores
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Shattered Sanctum
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Path of Ancestry
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Undercity Sewers
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Flooded Strand
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Sunken Ruins
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Dismal Backwater
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Misty Rainforest
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Scrubland
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Tundra
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Adarkar Wastes
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Marsh Flats
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Bloodstained Mire
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