Mercurial Pretender + Dockside Extortionist
Mercurial Pretender
Dockside Extortionist
Requires
Mercurial Pretender must be in hand.
Dockside Extortionist must be on the battlefield.
Mana needed: 
Steps
- Cast Mercurial Pretender by paying , choosing to have it enter the battlefield as a copy of Dockside Extortionist.
- Mercurial Pretender enters the battlefield, creating at least ten Treasure tokens.
- Activate nine Treasure tokens by tapping and sacrificing them, adding
. - Activate Mercurial Pretender by paying
, returning it from the battlefield to your hand. - Repeat.
Results
Infinite colored mana. Infinite ETB. Infinite LTB. Infinite storm count. Infinite Treasure tokens.
Top Commanders
Miirym, Sentinel Wyrm
0.03% of 23627 decks
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Sakashima of a Thousand Faces // Vial Smasher the Fierce
0.18% of 2170 decks
4 decks
Riku of Two Reflections
0.08% of 4924 decks
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Kenrith, the Returned King
0.01% of 23913 decks
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Satya, Aetherflux Genius
0.02% of 8983 decks
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Breeches, Brazen Plunderer // Malcolm, Keen-Eyed Navigator
0.06% of 3617 decks
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Animar, Soul of Elements
0.01% of 17851 decks
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Zinnia, Valley's Voice
0.02% of 9546 decks
2 decks
Firkraag, Cunning Instigator
0.03% of 3379 decks
1 decks
Yidris, Maelstrom Wielder
0.01% of 6995 decks
1 decks
Rashmi and Ragavan
0.02% of 5814 decks
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Mizzix of the Izmagnus
0.02% of 5086 decks
1 decks
Sauron, the Dark Lord
0.00% of 26711 decks
1 decks
Sakashima of a Thousand Faces // Tana, the Bloodsower
0.50% of 201 decks
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Karlach, Fury of Avernus // Sword Coast Sailor
0.07% of 1501 decks
1 decks
Zara, Renegade Recruiter
0.17% of 588 decks
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Admiral Brass, Unsinkable
0.02% of 6262 decks
1 decks
Tetzin, Gnome Champion
0.02% of 4126 decks
1 decks
High Synergy Cards
Evil Twin
58% of 12 decks
+57% synergy
Clever Impersonator
42% of 43 decks
+39% synergy
Clone
37% of 43 decks
+36% synergy
Sakashima the Impostor
37% of 43 decks
+35% synergy
Deflecting Swat
51% of 43 decks
+35% synergy
Sakashima of a Thousand Faces
37% of 43 decks
+34% synergy
Mirror Image
35% of 43 decks
+34% synergy
Phantasmal Image
35% of 43 decks
+32% synergy
Spark Double
37% of 43 decks
+30% synergy
Phyrexian Metamorph
37% of 43 decks
+30% synergy
Top Cards
Cultivate
70% of 20 decks
+25% synergy
Beast Within
65% of 20 decks
+28% synergy
Kodama's Reach
60% of 20 decks
+30% synergy
Farseek
50% of 20 decks
+16% synergy
Counterspell
44% of 43 decks
+2% synergy
Rampant Growth
40% of 20 decks
+6% synergy
Adrix and Nev, Twincasters
35% of 20 decks
+30% synergy
Parallel Lives
35% of 20 decks
+28% synergy
Temur Ascendancy
35% of 20 decks
+20% synergy
Garruk's Uprising
35% of 20 decks
+19% synergy
Game Changers
Smothering Tithe
75% of 8 decks
+51% synergy
Enlightened Tutor
62% of 8 decks
+46% synergy
Demonic Tutor
50% of 12 decks
+29% synergy
Cyclonic Rift
49% of 43 decks
+22% synergy
Rhystic Study
44% of 43 decks
+18% synergy
Vampiric Tutor
42% of 12 decks
+24% synergy
Mystical Tutor
33% of 43 decks
+18% synergy
Fierce Guardianship
33% of 43 decks
+14% synergy
Ancient Tomb
30% of 43 decks
+20% synergy
Force of Will
30% of 43 decks
+19% synergy
Creatures
Faeburrow Elder
100% of 3 decks
+89% synergy
Esper Sentinel
38% of 8 decks
+18% synergy
Agate Instigator
33% of 9 decks
+30% synergy
Pollywog Prodigy
33% of 9 decks
+29% synergy
Glasspool Mimic
33% of 43 decks
+30% synergy
Dack's Duplicate
30% of 43 decks
+30% synergy
Progenitor Mimic
30% of 20 decks
+28% synergy
Birds of Paradise
30% of 20 decks
+3% synergy
Undercover Operative
28% of 43 decks
+27% synergy
Deadeye Navigator
28% of 43 decks
+26% synergy
Pirated Copy
26% of 43 decks
+25% synergy
Stunt Double
26% of 43 decks
+25% synergy
Altered Ego
25% of 20 decks
+24% synergy
Havengul Lich
25% of 12 decks
+24% synergy
Bloom Tender
25% of 20 decks
+17% synergy
Mirrorhall Mimic
23% of 43 decks
+22% synergy
Vizier of Many Faces
21% of 43 decks
+20% synergy
Terror of the Peaks
21% of 43 decks
+16% synergy
Biovisionary
20% of 20 decks
+19% synergy
Moritte of the Frost
20% of 20 decks
+19% synergy
Soul of the Harvest
20% of 20 decks
+17% synergy
Temur Sabertooth
20% of 20 decks
+17% synergy
Thrakkus the Butcher
20% of 20 decks
+16% synergy
Old Gnawbone
20% of 20 decks
+16% synergy
Gigantoplasm
19% of 43 decks
+18% synergy
Gemcutter Buccaneer
17% of 24 decks
+16% synergy
Malcolm, Alluring Scoundrel
17% of 24 decks
+15% synergy
Roaming Throne
17% of 24 decks
+10% synergy
Vesuvan Shapeshifter
16% of 43 decks
+16% synergy
Sakashima's Student
16% of 43 decks
+15% synergy
Ganax, Astral Hunter
16% of 43 decks
+14% synergy
Scourge of Valkas
16% of 43 decks
+14% synergy
Imperial Recruiter
16% of 43 decks
+11% synergy
Breeches, Eager Pillager
15% of 26 decks
+14% synergy
Draconic Muralists
15% of 20 decks
+14% synergy
Earthquake Dragon
15% of 20 decks
+14% synergy
Fierce Empath
15% of 20 decks
+13% synergy
Korlessa, Scale Singer
15% of 20 decks
+12% synergy
Nyxbloom Ancient
15% of 20 decks
+11% synergy
Savage Ventmaw
15% of 20 decks
+10% synergy
Atarka, World Render
15% of 20 decks
+9% synergy
Seedborn Muse
15% of 20 decks
+7% synergy
Beast Whisperer
15% of 20 decks
+4% synergy
Sakura-Tribe Elder
15% of 20 decks
-3% synergy
Eternal Witness
15% of 20 decks
-5% synergy
Protean Raider
14% of 43 decks
+13% synergy
Astral Dragon
14% of 43 decks
+12% synergy
Dualcaster Mage
14% of 43 decks
+9% synergy
Displacer Kitten
14% of 43 decks
+9% synergy
Goldspan Dragon
14% of 43 decks
+8% synergy
Instants
Path to Exile
38% of 8 decks
-9% synergy
Swords to Plowshares
38% of 8 decks
-25% synergy
Mana Drain
30% of 43 decks
+15% synergy
Heroic Intervention
30% of 20 decks
+0% synergy
Pongify
28% of 43 decks
+16% synergy
Chaos Warp
26% of 43 decks
-6% synergy
Curtains' Call
25% of 12 decks
+24% synergy
Deadly Rollick
25% of 12 decks
+14% synergy
Terminate
25% of 12 decks
+5% synergy
Swan Song
23% of 43 decks
+7% synergy
Double Major
20% of 20 decks
+17% synergy
Second Harvest
20% of 20 decks
+15% synergy
Return to Nature
20% of 20 decks
+14% synergy
Capsize
19% of 43 decks
+18% synergy
Cackling Counterpart
19% of 43 decks
+17% synergy
Rapid Hybridization
19% of 43 decks
+9% synergy
Ghostly Flicker
16% of 43 decks
+11% synergy
Force of Negation
16% of 43 decks
+8% synergy
Brainstorm
16% of 43 decks
-3% synergy
Worldly Tutor
15% of 20 decks
+1% synergy
Growth Spiral
15% of 20 decks
-7% synergy
Reality Shift
14% of 43 decks
+5% synergy
An Offer You Can't Refuse
14% of 43 decks
-8% synergy
Narset's Reversal
12% of 43 decks
+8% synergy
Negate
12% of 43 decks
-11% synergy
Siren's Ruse
9% of 43 decks
+9% synergy
Reiterate
9% of 43 decks
+8% synergy
Essence Flux
9% of 43 decks
+7% synergy
Spell Pierce
9% of 43 decks
+6% synergy
Dig Through Time
9% of 43 decks
+5% synergy
Arcane Denial
9% of 43 decks
-11% synergy
Fated Infatuation
7% of 43 decks
+7% synergy
Twincast
7% of 43 decks
+6% synergy
Planar Incision
7% of 43 decks
+6% synergy
Displace
7% of 43 decks
+5% synergy
See Double
7% of 43 decks
+5% synergy
Sublime Epiphany
7% of 43 decks
+5% synergy
Reverberate
7% of 43 decks
+4% synergy
Muddle the Mixture
7% of 43 decks
+2% synergy
Opt
7% of 43 decks
-2% synergy
Frantic Search
7% of 43 decks
-6% synergy
Sorceries
Nature's Lore
30% of 20 decks
-2% synergy
Rite of Replication
26% of 43 decks
+23% synergy
Mythos of Illuna
25% of 20 decks
+24% synergy
Grim Tutor
25% of 12 decks
+21% synergy
Blasphemous Act
21% of 43 decks
-12% synergy
Three Visits
20% of 20 decks
-4% synergy
Jeska's Will
19% of 43 decks
+2% synergy
Clone Legion
16% of 43 decks
+15% synergy
Irenicus's Vile Duplication
16% of 43 decks
+13% synergy
Windfall
16% of 43 decks
+4% synergy
Circuitous Route
15% of 20 decks
+13% synergy
Search for Tomorrow
15% of 20 decks
+12% synergy
Shamanic Revelation
15% of 20 decks
+6% synergy
Skyshroud Claim
15% of 20 decks
+6% synergy
Wheel of Fortune
14% of 43 decks
+9% synergy
Quasiduplicate
12% of 43 decks
+10% synergy
Fabricate
12% of 43 decks
+6% synergy
Gamble
12% of 43 decks
+2% synergy
Ponder
12% of 43 decks
-1% synergy
Replication Technique
9% of 43 decks
+9% synergy
Brass's Bounty
9% of 43 decks
+7% synergy
Solve the Equation
9% of 43 decks
+5% synergy
Mana Geyser
9% of 43 decks
+3% synergy
Preordain
9% of 43 decks
-1% synergy
Vandalblast
9% of 43 decks
-6% synergy
Faithless Looting
9% of 43 decks
-7% synergy
Raise the Palisade
8% of 36 decks
+5% synergy
Saheeli's Artistry
7% of 43 decks
+6% synergy
Heat Shimmer
7% of 43 decks
+6% synergy
Mizzium Mortars
7% of 43 decks
+5% synergy
Serum Visions
7% of 43 decks
+3% synergy
Treasure Cruise
7% of 43 decks
+2% synergy
Utility Artifacts
The Great Henge
25% of 20 decks
+15% synergy
Mirror Box
23% of 43 decks
+22% synergy
Helm of the Host
21% of 43 decks
+18% synergy
Jeweled Lotus
21% of 43 decks
+17% synergy
Lightning Greaves
19% of 43 decks
-6% synergy
Swiftfoot Boots
19% of 43 decks
-9% synergy
Dino DNA
17% of 24 decks
+16% synergy
The Indomitable
17% of 24 decks
+15% synergy
Temur Banner
15% of 20 decks
+15% synergy
Cloudstone Curio
14% of 43 decks
+13% synergy
Lithoform Engine
14% of 43 decks
+13% synergy
Strionic Resonator
14% of 43 decks
+11% synergy
Panharmonicon
14% of 43 decks
+10% synergy
Mirror Gallery
12% of 43 decks
+11% synergy
Mirage Mirror
12% of 43 decks
+10% synergy
The One Ring
12% of 43 decks
+4% synergy
Commander's Sphere
12% of 43 decks
-3% synergy
Mind Stone
12% of 43 decks
-5% synergy
Conjurer's Closet
9% of 43 decks
+7% synergy
Maskwood Nexus
9% of 43 decks
+7% synergy
Urza's Incubator
9% of 43 decks
+6% synergy
Bident of Thassa
9% of 43 decks
+3% synergy
Lotus Petal
9% of 43 decks
+3% synergy
Wayfarer's Bauble
9% of 43 decks
-0% synergy
Rings of Brighthearth
7% of 43 decks
+5% synergy
Sensei's Divining Top
7% of 43 decks
+2% synergy
Enchantments
Caretaker's Talent
60% of 5 decks
+55% synergy
Mystic Remora
30% of 43 decks
+13% synergy
Doubling Season
30% of 20 decks
+20% synergy
Revel in Riches
25% of 12 decks
+22% synergy
Disappear
21% of 43 decks
+21% synergy
Mechanized Production
16% of 43 decks
+13% synergy
Dragon Tempest
12% of 43 decks
+8% synergy
Curiosity
9% of 43 decks
+6% synergy
Reflections of Littjara
9% of 43 decks
+5% synergy
Kindred Discovery
9% of 43 decks
+2% synergy
Impact Tremors
9% of 43 decks
-1% synergy
Followed Footsteps
7% of 43 decks
+7% synergy
Vesuvan Duplimancy
7% of 43 decks
+6% synergy
Extravagant Replication
7% of 43 decks
+5% synergy
Molten Echoes
7% of 43 decks
+5% synergy
Coastal Piracy
7% of 43 decks
+5% synergy
Sneak Attack
7% of 43 decks
+5% synergy
Fiery Emancipation
7% of 43 decks
+3% synergy
Warstorm Surge
7% of 43 decks
+2% synergy
Utility Lands
Reliquary Tower
37% of 43 decks
+7% synergy
Urza's Saga
19% of 43 decks
+12% synergy
Otawara, Soaring City
19% of 43 decks
+2% synergy
Boseiju, Who Endures
15% of 20 decks
-4% synergy
Rogue's Passage
14% of 43 decks
-6% synergy
Mirrorpool
12% of 43 decks
+11% synergy
Temple of the False God
12% of 43 decks
+2% synergy
Command Beacon
9% of 43 decks
+5% synergy
Homeward Path
7% of 43 decks
+5% synergy
Treasure Vault
7% of 43 decks
+4% synergy
Yavimaya, Cradle of Growth
7% of 43 decks
-2% synergy
Urborg, Tomb of Yawgmoth
7% of 43 decks
-2% synergy
Mana Artifacts
Sol Ring
88% of 43 decks
+4% synergy
Arcane Signet
72% of 43 decks
-0% synergy
Dimir Signet
50% of 12 decks
+21% synergy
Talisman of Creativity
42% of 43 decks
+13% synergy
Talisman of Indulgence
42% of 12 decks
+15% synergy
Rakdos Signet
42% of 12 decks
+13% synergy
Izzet Signet
35% of 43 decks
+8% synergy
Talisman of Dominance
33% of 12 decks
+1% synergy
Mana Crypt
28% of 43 decks
+22% synergy
Fellwar Stone
23% of 43 decks
+2% synergy
Cursed Mirror
21% of 43 decks
+16% synergy
Chromatic Lantern
21% of 43 decks
+12% synergy
Simic Signet
20% of 20 decks
+6% synergy
Thought Vessel
19% of 43 decks
+1% synergy
Chrome Mox
16% of 43 decks
+10% synergy
Gruul Signet
15% of 20 decks
+4% synergy
Talisman of Curiosity
15% of 20 decks
+2% synergy
Mana Vault
14% of 43 decks
+8% synergy
Dragon's Hoard
12% of 43 decks
+10% synergy
Mox Diamond
12% of 43 decks
+7% synergy
Mox Opal
12% of 43 decks
+7% synergy
Gilded Lotus
9% of 43 decks
+6% synergy
Chromatic Orrery
7% of 43 decks
+6% synergy
Basalt Monolith
7% of 43 decks
+4% synergy
Lands
The World Tree
100% of 3 decks
+68% synergy
Command Tower
93% of 43 decks
+19% synergy
Watery Grave
75% of 12 decks
+35% synergy
Steam Vents
70% of 43 decks
+31% synergy
Blood Crypt
67% of 12 decks
+29% synergy
Hallowed Fountain
62% of 8 decks
+22% synergy
Morphic Pool
58% of 12 decks
+33% synergy
Training Center
58% of 43 decks
+31% synergy
Spire Garden
55% of 20 decks
+31% synergy
Ketria Triome
55% of 20 decks
+23% synergy
Scalding Tarn
51% of 43 decks
+40% synergy
Exotic Orchard
51% of 43 decks
+15% synergy
Sacred Foundry
50% of 8 decks
+15% synergy
Frontier Bivouac
45% of 20 decks
+17% synergy
Stomping Ground
45% of 20 decks
+5% synergy
Breeding Pool
45% of 20 decks
+5% synergy
Sulfur Falls
44% of 43 decks
+12% synergy
Badlands
42% of 12 decks
+28% synergy
Underground Sea
42% of 12 decks
+27% synergy
Cinder Glade
40% of 20 decks
+2% synergy
Wooded Foothills
40% of 43 decks
+29% synergy
Raugrin Triome
38% of 8 decks
+12% synergy
Prairie Stream
38% of 8 decks
+4% synergy
Shivan Reef
37% of 43 decks
+10% synergy
Rockfall Vale
35% of 20 decks
+13% synergy
Xander's Lounge
33% of 12 decks
+8% synergy
Luxury Suite
33% of 12 decks
+7% synergy
Dragonskull Summit
33% of 12 decks
+1% synergy
Misty Rainforest
33% of 43 decks
+21% synergy
Path of Ancestry
33% of 43 decks
+11% synergy
Mana Confluence
30% of 43 decks
+23% synergy
Flooded Strand
30% of 43 decks
+19% synergy
Tropical Island
30% of 20 decks
+16% synergy
Rootbound Crag
30% of 20 decks
+5% synergy
Rejuvenating Springs
30% of 20 decks
+2% synergy
Volcanic Island
28% of 43 decks
+14% synergy
City of Brass
26% of 43 decks
+18% synergy
Arid Mesa
26% of 43 decks
+15% synergy
Stormcarved Coast
26% of 43 decks
+8% synergy
Taiga
25% of 20 decks
+12% synergy
Haunted Ridge
25% of 12 decks
+9% synergy
Dreamroot Cascade
25% of 20 decks
+5% synergy
Drowned Catacomb
25% of 12 decks
-2% synergy
Hinterland Harbor
25% of 20 decks
-5% synergy
Smoldering Marsh
25% of 12 decks
-8% synergy
Bloodstained Mire
21% of 43 decks
+10% synergy
Evolving Wilds
21% of 43 decks
+0% synergy
Simic Growth Chamber
20% of 20 decks
+1% synergy
Yavimaya Coast
20% of 20 decks
-7% synergy
Polluted Delta
19% of 43 decks
+7% synergy