Intruder Alarm
Maskwood Nexus
Karn, the Great Creator

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield.
Creatures you control can tap to produce at least 3.

   Steps

How does this combo work?
1
Activate Karn's first loyalty ability by putting a loyalty counter on it, causing Maskwood Nexus to become a 4/4 artifact creature until end of turn.
2
Activate any number of mana-producing creatures you control by tapping them, adding at least 3.
3
Activate Maskwood Nexus by paying 3 and tapping it, creating a 2/2 Shapeshifter creature token.
4
When the Shapeshifter enters the battlefield, Intruder Alarm triggers, untapping all creatures.
5
Repeat from step 2.
6
If creatures you control can tap to produce at least 4, this combo nets infinite mana.

   Results

What do I get from this combo?
Infinite creature tokens
Infinite ETB
Infinite mana creatures you control can produce
Infinite untap of creatures
Urtet, Remnant of Memnarch
0.0%inclusion7 decks16K decks
Urza, Lord High Artificer
0.0%inclusion2 decks18.2K decks
Ulalek, Fused Atrocity
0.0%inclusion2 decks26.7K decks
Leonardo da Vinci
0.0%inclusion2 decks4.61K decks
Reaper King
0.0%inclusion2 decks8.12K decks
Chulane, Teller of Tales
0.0%inclusion1 decks8.86K decks
Francisco, Fowl Marauder // Malcolm, Keen-Eyed Navigator
0.0%inclusion1 decks2.74K decks
Toxrill, the Corrosive
0.0%inclusion1 decks8.08K decks
Aragorn, the Uniter
0.0%inclusion1 decks20.6K decks
Shorikai, Genesis Engine
0.0%inclusion1 decks19.7K decks
Jackdaw
0.2%inclusion1 decks479 decks
Jared Carthalion
0.0%inclusion1 decks4.69K decks
Loot, the Pathfinder
0.0%inclusion1 decks5.03K decks
Sliver Overlord
0.0%inclusion1 decks9.52K decks
Omnath, Locus of All
0.0%inclusion1 decks13.6K decks
Aesi, Tyrant of Gyre Strait
0.0%inclusion1 decks14.8K decks
Jhoira, Ageless Innovator
0.0%inclusion1 decks2.34K decks
Morophon, the Boundless
0.0%inclusion1 decks13.8K decks
High Synergy Cards
Foundry Inspector
52%inclusion15 decks29 decks
48%synergy
Mycosynth Lattice
48%inclusion14 decks29 decks
47%synergy
Gold Myr
42%inclusion8 decks19 decks
40%synergy
Iron Myr
42%inclusion8 decks19 decks
39%synergy
Unwinding Clock
41%inclusion12 decks29 decks
39%synergy
Great Furnace
42%inclusion8 decks19 decks
36%synergy
Copper Myr
37%inclusion7 decks19 decks
36%synergy
Vault of Whispers
39%inclusion7 decks18 decks
35%synergy
Seat of the Synod
41%inclusion12 decks29 decks
35%synergy
Myr Battlesphere
34%inclusion10 decks29 decks
33%synergy
Top Cards
Doubling Season
37%inclusion7 decks19 decks
27%synergy
Leaden Myr
33%inclusion6 decks18 decks
32%synergy
Jhoira, Weatherlight Captain
32%inclusion6 decks19 decks
26%synergy
Forsaken Monument
31%inclusion9 decks29 decks
29%synergy
Sculpting Steel
31%inclusion9 decks29 decks
29%synergy
Silver Myr
31%inclusion9 decks29 decks
29%synergy
Etherium Sculptor
31%inclusion9 decks29 decks
25%synergy
Myr Turbine
28%inclusion8 decks29 decks
27%synergy
Clock of Omens
28%inclusion8 decks29 decks
27%synergy
Staff of Domination
28%inclusion8 decks29 decks
26%synergy
Game Changers
The One Ring
31%inclusion9 decks29 decks
23%synergy
Cyclonic Rift
31%inclusion9 decks29 decks
9%synergy
Demonic Tutor
28%inclusion5 decks18 decks
9%synergy
Fierce Guardianship
28%inclusion8 decks29 decks
10%synergy
Enlightened Tutor
26%inclusion5 decks19 decks
11%synergy
Mana Vault
21%inclusion6 decks29 decks
15%synergy
Aura Shards
18%inclusion3 decks17 decks
10%synergy
Mox Diamond
17%inclusion5 decks29 decks
13%synergy
Chrome Mox
17%inclusion5 decks29 decks
11%synergy
Ancient Tomb
17%inclusion5 decks29 decks
8%synergy
Creatures
Myr Retriever
28%inclusion8 decks29 decks
26%synergy
Palladium Myr
28%inclusion8 decks29 decks
26%synergy
Emry, Lurker of the Loch
28%inclusion8 decks29 decks
23%synergy
Urza, Prince of Kroog
26%inclusion5 decks19 decks
25%synergy
Kinnan, Bonder Prodigy
26%inclusion5 decks19 decks
22%synergy
Alibou, Ancient Witness
25%inclusion4 decks16 decks
22%synergy
Alloy Myr
24%inclusion7 decks29 decks
24%synergy
Shimmer Myr
24%inclusion7 decks29 decks
23%synergy
Urza, Lord High Artificer
24%inclusion7 decks29 decks
21%synergy
Ingenious Artillerist
21%inclusion4 decks19 decks
19%synergy
Magda, Brazen Outlaw
21%inclusion4 decks19 decks
19%synergy
Brudiclad, Telchor Engineer
21%inclusion4 decks19 decks
18%synergy
Myr Propagator
21%inclusion6 decks29 decks
21%synergy
Myr Welder
21%inclusion6 decks29 decks
20%synergy
Myr Galvanizer
21%inclusion6 decks29 decks
20%synergy
Steel Overseer
21%inclusion6 decks29 decks
19%synergy
Morophon, the Boundless
20%inclusion3 decks15 decks
6%synergy
Urza, Chief Artificer
19%inclusion3 decks16 decks
17%synergy
Scrap Trawler
17%inclusion5 decks29 decks
16%synergy
Sai, Master Thopterist
17%inclusion5 decks29 decks
14%synergy
Phyrexian Metamorph
17%inclusion5 decks29 decks
10%synergy
Knighted Myr
16%inclusion3 decks19 decks
16%synergy
Myrsmith
16%inclusion3 decks19 decks
15%synergy
Krenko, Mob Boss
16%inclusion3 decks19 decks
14%synergy
Xorn
16%inclusion3 decks19 decks
13%synergy
Reckless Fireweaver
16%inclusion3 decks19 decks
12%synergy
Rampaging Baloths
16%inclusion3 decks19 decks
9%synergy
Tireless Provisioner
16%inclusion3 decks19 decks
5%synergy
Myr Kinsmith
14%inclusion4 decks29 decks
14%synergy
Metalworker
14%inclusion4 decks29 decks
13%synergy
Mycosynth Golem
14%inclusion4 decks29 decks
13%synergy
Glaring Fleshraker
14%inclusion4 decks29 decks
13%synergy
Padeem, Consul of Innovation
14%inclusion4 decks29 decks
10%synergy
Ornithopter of Paradise
14%inclusion4 decks29 decks
9%synergy
Displacer Kitten
14%inclusion4 decks29 decks
9%synergy
Roaming Throne
14%inclusion4 decks29 decks
7%synergy
Hullbreaker Horror
14%inclusion4 decks29 decks
6%synergy
Battered Golem
10%inclusion3 decks29 decks
10%synergy
Hovermyr
10%inclusion3 decks29 decks
10%synergy
Darksteel Myr
10%inclusion3 decks29 decks
10%synergy
Myr Enforcer
10%inclusion3 decks29 decks
10%synergy
Chief of the Foundry
10%inclusion3 decks29 decks
10%synergy
Myr Convert
10%inclusion3 decks29 decks
10%synergy
Shrieking Drake
10%inclusion3 decks29 decks
10%synergy
Cybermen Squadron
10%inclusion3 decks29 decks
10%synergy
Sharding Sphinx
10%inclusion3 decks29 decks
9%synergy
Vedalken Archmage
10%inclusion3 decks29 decks
9%synergy
Liberator, Urza's Battlethopter
10%inclusion3 decks29 decks
9%synergy
Metallic Mimic
10%inclusion3 decks29 decks
9%synergy
Blightsteel Colossus
10%inclusion3 decks29 decks
9%synergy
Instants
Dramatic Reversal
28%inclusion8 decks29 decks
23%synergy
Heroic Intervention
26%inclusion5 decks19 decks
-4%synergy
Vampiric Tutor
22%inclusion4 decks18 decks
8%synergy
Swords to Plowshares
21%inclusion4 decks19 decks
-40%synergy
Whir of Invention
17%inclusion5 decks29 decks
15%synergy
Mana Drain
17%inclusion5 decks29 decks
3%synergy
Negate
17%inclusion5 decks29 decks
-4%synergy
Counterspell
17%inclusion5 decks29 decks
-25%synergy
Dispatch
16%inclusion3 decks19 decks
10%synergy
Tamiyo's Safekeeping
16%inclusion3 decks19 decks
10%synergy
Teferi's Protection
16%inclusion3 decks19 decks
-1%synergy
Path to Exile
16%inclusion3 decks19 decks
-31%synergy
Nexus of Fate
14%inclusion4 decks29 decks
12%synergy
Force of Will
14%inclusion4 decks29 decks
4%synergy
An Offer You Can't Refuse
14%inclusion4 decks29 decks
-11%synergy
Stifle
10%inclusion3 decks29 decks
10%synergy
Muddle the Mixture
10%inclusion3 decks29 decks
6%synergy
Mindbreak Trap
10%inclusion3 decks29 decks
5%synergy
Pact of Negation
10%inclusion3 decks29 decks
4%synergy
Force of Negation
10%inclusion3 decks29 decks
2%synergy
Rapid Hybridization
10%inclusion3 decks29 decks
1%synergy
Mystical Tutor
10%inclusion3 decks29 decks
-2%synergy
Swan Song
10%inclusion3 decks29 decks
-7%synergy
Sorceries
Fabricate
28%inclusion8 decks29 decks
22%synergy
Grim Tutor
17%inclusion3 decks18 decks
13%synergy
Reckless Handling
16%inclusion3 decks19 decks
15%synergy
Vandalblast
16%inclusion3 decks19 decks
0%synergy
Cultivate
16%inclusion3 decks19 decks
-27%synergy
March of Progress
10%inclusion3 decks29 decks
10%synergy
Rise and Shine
10%inclusion3 decks29 decks
9%synergy
Windfall
10%inclusion3 decks29 decks
-1%synergy
Utility Artifacts
Cloud Key
28%inclusion8 decks29 decks
26%synergy
Sensei's Divining Top
28%inclusion8 decks29 decks
23%synergy
Isochron Scepter
24%inclusion7 decks29 decks
22%synergy
Mystic Forge
24%inclusion7 decks29 decks
21%synergy
Ashnod's Altar
24%inclusion7 decks29 decks
18%synergy
Myr Matrix
21%inclusion6 decks29 decks
21%synergy
Realmbreaker, the Invasion Tree
21%inclusion6 decks29 decks
20%synergy
Krark-Clan Ironworks
21%inclusion6 decks29 decks
20%synergy
Aetherflux Reservoir
21%inclusion6 decks29 decks
17%synergy
Lightning Greaves
21%inclusion6 decks29 decks
-4%synergy
Rings of Brighthearth
17%inclusion5 decks29 decks
16%synergy
Time Sieve
17%inclusion3 decks18 decks
14%synergy
Spine of Ish Sah
14%inclusion4 decks29 decks
13%synergy
Darksteel Forge
14%inclusion4 decks29 decks
13%synergy
Simulacrum Synthesizer
14%inclusion4 decks29 decks
12%synergy
Helm of the Host
14%inclusion4 decks29 decks
11%synergy
Genesis Chamber
10%inclusion3 decks29 decks
10%synergy
Semblance Anvil
10%inclusion3 decks29 decks
10%synergy
Voltaic Key
10%inclusion3 decks29 decks
9%synergy
Encroaching Mycosynth
10%inclusion3 decks29 decks
9%synergy
Lithoform Engine
10%inclusion3 decks29 decks
9%synergy
Manifold Key
10%inclusion3 decks29 decks
9%synergy
Thousand-Year Elixir
10%inclusion3 decks29 decks
9%synergy
Howling Mine
10%inclusion3 decks29 decks
8%synergy
Sapphire Medallion
10%inclusion3 decks29 decks
7%synergy
Vanquisher's Banner
10%inclusion3 decks29 decks
7%synergy
Phyrexian Altar
10%inclusion3 decks29 decks
7%synergy
Urza's Incubator
10%inclusion3 decks29 decks
7%synergy
Swiftfoot Boots
10%inclusion3 decks29 decks
-17%synergy
Enchantments
Cryptolith Rite
26%inclusion5 decks19 decks
22%synergy
Parallel Lives
26%inclusion5 decks19 decks
20%synergy
Smothering Tithe
26%inclusion5 decks19 decks
5%synergy
Echoes of Eternity
24%inclusion7 decks29 decks
23%synergy
Mystic Remora
21%inclusion6 decks29 decks
5%synergy
Rhystic Study
21%inclusion6 decks29 decks
-3%synergy
Mechanized Production
17%inclusion5 decks29 decks
14%synergy
Anointed Procession
16%inclusion3 decks19 decks
9%synergy
Impact Tremors
16%inclusion3 decks19 decks
6%synergy
Leyline of Transformation
15%inclusion4 decks27 decks
14%synergy
Training Grounds
14%inclusion4 decks29 decks
11%synergy
Thopter Spy Network
14%inclusion4 decks29 decks
10%synergy
March of the Machines
10%inclusion3 decks29 decks
10%synergy
Mind Over Matter
10%inclusion3 decks29 decks
10%synergy
Arcane Adaptation
10%inclusion3 decks29 decks
9%synergy
Freed from the Real
10%inclusion3 decks29 decks
8%synergy
Planeswalkers
Ugin, the Ineffable
24%inclusion7 decks29 decks
23%synergy
Tezzeret the Seeker
17%inclusion5 decks29 decks
15%synergy
Tezzeret, Betrayer of Flesh
14%inclusion4 decks29 decks
13%synergy
Utility Lands
Ancient Den
37%inclusion7 decks19 decks
31%synergy
Darksteel Citadel
31%inclusion9 decks29 decks
27%synergy
Academy Ruins
28%inclusion8 decks29 decks
22%synergy
Reliquary Tower
28%inclusion8 decks29 decks
-2%synergy
Tree of Tales
26%inclusion5 decks19 decks
24%synergy
Urza's Power Plant
24%inclusion7 decks29 decks
22%synergy
Urza's Mine
24%inclusion7 decks29 decks
22%synergy
Urza's Tower
24%inclusion7 decks29 decks
22%synergy
Inventors' Fair
24%inclusion7 decks29 decks
20%synergy
Buried Ruin
24%inclusion7 decks29 decks
19%synergy
Urza's Saga
21%inclusion6 decks29 decks
14%synergy
Shrine of the Forsaken Gods
14%inclusion4 decks29 decks
12%synergy
Treasure Vault
14%inclusion4 decks29 decks
11%synergy
Temple of the False God
14%inclusion4 decks29 decks
5%synergy
Urza's Workshop
10%inclusion3 decks29 decks
10%synergy
Tomb of the Spirit Dragon
10%inclusion3 decks29 decks
9%synergy
Cascading Cataracts
10%inclusion3 decks29 decks
9%synergy
Archway of Innovation
10%inclusion3 decks29 decks
7%synergy
Yavimaya, Cradle of Growth
10%inclusion3 decks29 decks
2%synergy
Mana Artifacts
Sol Ring
86%inclusion25 decks29 decks
3%synergy
Arcane Signet
59%inclusion17 decks29 decks
-14%synergy
Chromatic Lantern
38%inclusion11 decks29 decks
29%synergy
Basalt Monolith
31%inclusion9 decks29 decks
29%synergy
Mox Opal
28%inclusion8 decks29 decks
23%synergy
Thran Dynamo
28%inclusion8 decks29 decks
23%synergy
Thought Vessel
28%inclusion8 decks29 decks
10%synergy
Timeless Lotus
20%inclusion3 decks15 decks
9%synergy
Mox Amber
17%inclusion5 decks29 decks
13%synergy
Lotus Petal
17%inclusion5 decks29 decks
10%synergy
Chromatic Orrery
14%inclusion4 decks29 decks
13%synergy
Liquimetal Torque
14%inclusion4 decks29 decks
11%synergy
Fellwar Stone
14%inclusion4 decks29 decks
-7%synergy
Myr Reservoir
10%inclusion3 decks29 decks
10%synergy
Crystal Skull, Isu Spyglass
10%inclusion3 decks29 decks
9%synergy
Relic of Legends
10%inclusion3 decks29 decks
8%synergy
Gilded Lotus
10%inclusion3 decks29 decks
7%synergy
Commander's Sphere
10%inclusion3 decks29 decks
-1%synergy
Lands
Command Tower
76%inclusion22 decks29 decks
2%synergy
The World Tree
73%inclusion11 decks15 decks
46%synergy
Exotic Orchard
41%inclusion12 decks29 decks
5%synergy
Watery Grave
39%inclusion7 decks18 decks
-3%synergy
Steam Vents
37%inclusion7 decks19 decks
-1%synergy
Hallowed Fountain
37%inclusion7 decks19 decks
-3%synergy
Temple Garden
35%inclusion6 decks17 decks
-4%synergy
Stomping Ground
35%inclusion6 decks17 decks
-6%synergy
Razortide Bridge
32%inclusion6 decks19 decks
25%synergy
Shivan Reef
32%inclusion6 decks19 decks
2%synergy
Breeding Pool
32%inclusion6 decks19 decks
-10%synergy
Sacred Foundry
31%inclusion5 decks16 decks
-6%synergy
Slagwoods Bridge
29%inclusion5 decks17 decks
27%synergy
Karplusan Forest
29%inclusion5 decks17 decks
9%synergy
Overgrown Tomb
27%inclusion4 decks15 decks
-14%synergy
Yavimaya Coast
26%inclusion5 decks19 decks
-1%synergy
Goldmire Bridge
25%inclusion4 decks16 decks
21%synergy
Rustvale Bridge
25%inclusion4 decks16 decks
19%synergy
Raugrin Triome
25%inclusion4 decks16 decks
1%synergy
Caves of Koilos
25%inclusion4 decks16 decks
-4%synergy
Godless Shrine
25%inclusion4 decks16 decks
-16%synergy
Path of Ancestry
24%inclusion7 decks29 decks
2%synergy
Thornglint Bridge
24%inclusion4 decks17 decks
22%synergy
Ketria Triome
24%inclusion4 decks17 decks
-7%synergy
Mistvault Bridge
22%inclusion4 decks18 decks
18%synergy
Underground River
22%inclusion4 decks18 decks
0%synergy
Silverbluff Bridge
21%inclusion4 decks19 decks
15%synergy
Adarkar Wastes
21%inclusion4 decks19 decks
-3%synergy
Polluted Delta
21%inclusion6 decks29 decks
9%synergy
Darkmoss Bridge
20%inclusion3 decks15 decks
17%synergy
Drossforge Bridge
20%inclusion3 decks15 decks
17%synergy
Xander's Lounge
20%inclusion3 decks15 decks
-3%synergy
Llanowar Wastes
20%inclusion3 decks15 decks
-7%synergy
Indatha Triome
20%inclusion3 decks15 decks
-7%synergy
Blood Crypt
20%inclusion3 decks15 decks
-18%synergy
Raffine's Tower
19%inclusion3 decks16 decks
-5%synergy
Battlefield Forge
19%inclusion3 decks16 decks
-10%synergy
Brushland
18%inclusion3 decks17 decks
-2%synergy
Spara's Headquarters
18%inclusion3 decks17 decks
-10%synergy
Frontier Bivouac
18%inclusion3 decks17 decks
-11%synergy
Flooded Strand
17%inclusion5 decks29 decks
6%synergy
Misty Rainforest
17%inclusion5 decks29 decks
6%synergy
Tanglepool Bridge
16%inclusion3 decks19 decks
13%synergy
Volcanic Island
16%inclusion3 decks19 decks
2%synergy
Spire of Industry
14%inclusion4 decks29 decks
11%synergy
Reflecting Pool
14%inclusion4 decks29 decks
9%synergy
Cavern of Souls
14%inclusion4 decks29 decks
7%synergy
City of Brass
14%inclusion4 decks29 decks
6%synergy
Scalding Tarn
14%inclusion4 decks29 decks
3%synergy
Wooded Foothills
14%inclusion4 decks29 decks
3%synergy