Thran Dynamo + Umbral Mantle + Xenic Poltergeist

Thran Dynamo
Umbral Mantle
Xenic Poltergeist

Requires
Thran Dynamo must be on the battlefield. Umbral Mantle must be on the battlefield. Xenic Poltergeist must be on the battlefield.
Steps
  1. Activate Xenic Poltergeist by tapping it, targeting Thran Dynamo.
  2. Activate Umbral Mantle's equip ability by paying 0, attaching it to the Thran Dynamo.
  3. Activate Thran Dynamo by tapping it, adding .
  4. Activate Umbral Mantle by paying 3 and untapping it, giving itself +2/+2 until end of turn.
  5. Repeat.
Results
Infinitely large Thran Dynamo until end of turn.

King Macar, the Gold-Cursed
0.41% of 975 decks 4 decks
Shauku, Endbringer
1.60% of 125 decks 2 decks
Merieke Ri Berit
0.10% of 2023 decks 2 decks
Trazyn the Infinite
0.05% of 1901 decks 1 decks
Kenrith, the Returned King
0.00% of 23725 decks 1 decks
Sharkey, Tyrant of the Shire
0.93% of 107 decks 1 decks
Acererak the Archlich
0.08% of 1277 decks 1 decks
Lorcan, Warlock Collector
0.26% of 378 decks 1 decks
Nefarox, Overlord of Grixis
0.98% of 102 decks 1 decks
High Synergy Cards
Voltaic Construct
57% of 14 decks +57% synergy
Magus of the Coffers
57% of 14 decks +56% synergy
Rings of Brighthearth
57% of 14 decks +56% synergy
Cabal Coffers
64% of 14 decks +54% synergy
Pili-Pala
43% of 14 decks +43% synergy
Staff of Domination
43% of 14 decks +41% synergy
Thousand-Year Elixir
43% of 14 decks +41% synergy
Sword of the Paruns
36% of 14 decks +35% synergy
Nim Deathmantle
36% of 14 decks +35% synergy
Krark-Clan Ironworks
36% of 14 decks +35% synergy
Top Cards
Dark Ritual
50% of 14 decks +27% synergy
Swiftfoot Boots
50% of 14 decks +22% synergy
Mind Stone
43% of 14 decks +26% synergy
Lightning Greaves
43% of 14 decks +18% synergy
Illusionist's Bracers
36% of 14 decks +35% synergy
Exsanguinate
36% of 14 decks +30% synergy
Diabolic Tutor
36% of 14 decks +30% synergy
Ashnod's Altar
36% of 14 decks +29% synergy
Karn, Silver Golem
29% of 14 decks +28% synergy
Magistrate's Scepter
29% of 14 decks +28% synergy
Game Changers
Demonic Tutor
36% of 14 decks +14% synergy
Vampiric Tutor
29% of 14 decks +11% synergy
Grim Monolith
21% of 14 decks +19% synergy
Mana Vault
21% of 14 decks +15% synergy
Creatures
Vizier of Tumbling Sands
75% of 4 decks +74% synergy
Wurmcoil Engine
29% of 14 decks +27% synergy
Palladium Myr
29% of 14 decks +27% synergy
Foundry Inspector
29% of 14 decks +25% synergy
Crypt Ghast
29% of 14 decks +24% synergy
Gray Merchant of Asphodel
29% of 14 decks +20% synergy
Farmstead Gleaner
21% of 14 decks +21% synergy
Myr Welder
21% of 14 decks +21% synergy
Trazyn the Infinite
21% of 14 decks +21% synergy
Metalworker
21% of 14 decks +21% synergy
Avatar of Woe
21% of 14 decks +21% synergy
Nirkana Revenant
21% of 14 decks +20% synergy
Royal Assassin
21% of 14 decks +20% synergy
Scrap Trawler
21% of 14 decks +20% synergy
Myr Retriever
21% of 14 decks +20% synergy
Academy Manufactor
21% of 14 decks +17% synergy
Instants
Stinging Study
21% of 14 decks +20% synergy
Defile
21% of 14 decks +18% synergy
Sorceries
Sign in Blood
29% of 14 decks +19% synergy
Grim Tutor
21% of 14 decks +17% synergy
Diabolic Intent
21% of 14 decks +13% synergy
Utility Artifacts
Transmutation Font
50% of 6 decks +50% synergy
Magewright's Stone
29% of 14 decks +28% synergy
Thornbite Staff
29% of 14 decks +28% synergy
Voltaic Key
29% of 14 decks +28% synergy
Clock of Omens
29% of 14 decks +28% synergy
Cloud Key
29% of 14 decks +27% synergy
Silverskin Armor
21% of 14 decks +21% synergy
Puppet Strings
21% of 14 decks +21% synergy
Semblance Anvil
21% of 14 decks +21% synergy
Mycosynth Lattice
21% of 14 decks +21% synergy
Lithoform Engine
21% of 14 decks +20% synergy
Sculpting Steel
21% of 14 decks +19% synergy
Unwinding Clock
21% of 14 decks +19% synergy
Hedron Archive
21% of 14 decks +19% synergy
Mystic Forge
21% of 14 decks +19% synergy
Jet Medallion
21% of 14 decks +18% synergy
Expedition Map
21% of 14 decks +18% synergy
Shadowspear
21% of 14 decks +18% synergy
Aetherflux Reservoir
21% of 14 decks +18% synergy
Phyrexian Altar
21% of 14 decks +18% synergy
Sensei's Divining Top
21% of 14 decks +16% synergy
Enchantments
March of the Machines
75% of 4 decks +75% synergy
Phyrexian Arena
29% of 14 decks +13% synergy
No Mercy
21% of 14 decks +19% synergy
Planeswalkers
Karn, the Great Creator
21% of 14 decks +20% synergy
Liliana of the Dark Realms
21% of 14 decks +20% synergy
Ugin, the Ineffable
21% of 14 decks +20% synergy
Utility Lands
Cabal Stronghold
36% of 14 decks +32% synergy
Urborg, Tomb of Yawgmoth
36% of 14 decks +26% synergy
Deserted Temple
29% of 14 decks +28% synergy
Maze of Ith
29% of 14 decks +26% synergy
Bojuka Bog
29% of 14 decks -1% synergy
Nykthos, Shrine to Nyx
21% of 14 decks +16% synergy
Takenuma, Abandoned Mire
21% of 14 decks +12% synergy
Rogue's Passage
21% of 14 decks +2% synergy
Mana Artifacts
Sol Ring
86% of 14 decks +1% synergy
Basalt Monolith
57% of 14 decks +55% synergy
Gilded Lotus
57% of 14 decks +54% synergy
Patriar's Seal
43% of 14 decks +41% synergy
Arcane Signet
43% of 14 decks -29% synergy
Caged Sun
36% of 14 decks +34% synergy
Charcoal Diamond
29% of 14 decks +24% synergy
Gemstone Array
21% of 14 decks +21% synergy
Honor-Worn Shaku
21% of 14 decks +21% synergy
Paradise Mantle
21% of 14 decks +21% synergy
Coveted Jewel
21% of 14 decks +20% synergy
Chromatic Orrery
21% of 14 decks +20% synergy
Worn Powerstone
21% of 14 decks +19% synergy
Liquimetal Torque
21% of 14 decks +18% synergy
Everflowing Chalice
21% of 14 decks +17% synergy