Steel Overseer + Crystalline Crawler + Pemmin's Aura

Steel Overseer
Crystalline Crawler
Pemmin's Aura

Requires
Steel Overseer must be on the battlefield. Crystalline Crawler must be on the battlefield. Pemmin's Aura must be on the battlefield. Pemmin's Aura attached to Steel Overseer. Steel Overseer does not have summoning sickness.
Steps
  1. Activate Steel Overseer by tapping it, putting a +1/+1 counter on each artifact creature you control.
  2. Activate Crystalline Crawler's first ability by removing a +1/+1 counter from it, adding .
  3. Activate Pemmin's Aura's first ability by paying , untapping Steel Overseer.
  4. Repeat.
Results
Infinite +1/+1 counters on all artifact creatures you control except Crystalline Crawler.

Vorel of the Hull Clade
0.14% of 2080 decks 3 decks
Cayth, Famed Mechanist
0.13% of 1543 decks 2 decks
Urza, Lord High Artificer
0.01% of 13021 decks 1 decks
Urza, Prince of Kroog
0.04% of 2456 decks 1 decks
Marchesa, the Black Rose
0.01% of 9529 decks 1 decks
Unctus, Grand Metatect
0.07% of 1347 decks 1 decks
Padeem, Consul of Innovation
0.33% of 305 decks 1 decks
Urtet, Remnant of Memnarch
0.01% of 14843 decks 1 decks
Urza, Lord Protector
0.02% of 4360 decks 1 decks
High Synergy Cards
Hangarback Walker
58% of 12 decks +57% synergy
Foundry Inspector
58% of 12 decks +54% synergy
Padeem, Consul of Innovation
50% of 12 decks +47% synergy
Darksteel Citadel
50% of 12 decks +46% synergy
Etherium Sculptor
50% of 12 decks +45% synergy
Mindless Automaton
42% of 12 decks +41% synergy
Urza's Workshop
40% of 10 decks +39% synergy
Walking Ballista
42% of 12 decks +39% synergy
Silver Myr
42% of 12 decks +39% synergy
Sai, Master Thopterist
42% of 12 decks +38% synergy
Top Cards
Astral Cornucopia
42% of 12 decks +41% synergy
Fabricate
42% of 12 decks +36% synergy
Illusionist's Bracers
33% of 12 decks +32% synergy
Rings of Brighthearth
33% of 12 decks +32% synergy
Cloud Key
33% of 12 decks +31% synergy
Scrap Trawler
33% of 12 decks +31% synergy
Kappa Cannoneer
33% of 12 decks +31% synergy
Inexorable Tide
33% of 12 decks +31% synergy
Unwinding Clock
33% of 12 decks +31% synergy
Thought Monitor
33% of 12 decks +30% synergy
Creatures
Kiora's Follower
75% of 4 decks +69% synergy
Drumbellower
60% of 5 decks +58% synergy
Flux Channeler
33% of 12 decks +30% synergy
Urza, Lord High Artificer
33% of 12 decks +30% synergy
Ornithopter of Paradise
33% of 12 decks +29% synergy
Phyrexian Metamorph
33% of 12 decks +26% synergy
Metallic Mimic
25% of 12 decks +24% synergy
Master of Etherium
25% of 12 decks +23% synergy
Deepglow Skate
25% of 12 decks +23% synergy
Myr Retriever
25% of 12 decks +23% synergy
Palladium Myr
25% of 12 decks +23% synergy
Trinket Mage
25% of 12 decks +23% synergy
Emry, Lurker of the Loch
25% of 12 decks +21% synergy
Solemn Simulacrum
25% of 12 decks +11% synergy
Instants
Dispatch
60% of 5 decks +55% synergy
Swords to Plowshares
60% of 5 decks -3% synergy
Dramatic Reversal
33% of 12 decks +28% synergy
Cyclonic Rift
33% of 12 decks +6% synergy
Counterspell
25% of 12 decks -18% synergy
Sorceries
Thoughtcast
33% of 12 decks +30% synergy
Utility Artifacts
Orochi Hatchery
25% of 12 decks +25% synergy
Animation Module
25% of 12 decks +25% synergy
Throne of Geth
25% of 12 decks +24% synergy
Contagion Engine
25% of 12 decks +24% synergy
Darksteel Forge
25% of 12 decks +24% synergy
The Ozolith
25% of 12 decks +21% synergy
Swiftfoot Boots
25% of 12 decks -3% synergy
Enchantments
Propaganda
25% of 12 decks +13% synergy
Rhystic Study
25% of 12 decks -3% synergy
Planeswalkers
Tezzeret, Artifice Master
25% of 12 decks +24% synergy
Tezzeret the Seeker
25% of 12 decks +22% synergy
Utility Lands
Reliquary Tower
58% of 12 decks +29% synergy
Seat of the Synod
42% of 12 decks +35% synergy
Urza's Tower
33% of 12 decks +32% synergy
Karn's Bastion
33% of 12 decks +28% synergy
Urza's Power Plant
25% of 12 decks +23% synergy
Urza's Mine
25% of 12 decks +23% synergy
Academy Ruins
25% of 12 decks +20% synergy
Buried Ruin
25% of 12 decks +20% synergy
Urza's Saga
25% of 12 decks +18% synergy
Mana Artifacts
Sol Ring
92% of 12 decks +7% synergy
Everflowing Chalice
33% of 12 decks +29% synergy
Thought Vessel
33% of 12 decks +16% synergy
Arcane Signet
33% of 12 decks -39% synergy
Lands
Temple of Mystery
75% of 4 decks +58% synergy
Rejuvenating Springs
75% of 4 decks +46% synergy
Steam Vents
75% of 4 decks +36% synergy
Command Tower
67% of 12 decks -7% synergy
Hallowed Fountain
60% of 5 decks +19% synergy
Exotic Orchard
25% of 12 decks -11% synergy