Romana II
Intruder Alarm

   Prerequisites

What do I need to start this combo?
Romana II and Intruder Alarm on the battlefield (Romana II without summoning sickness on the battlefield).
There is a creature token on the battlefield that entered this turn. You control at least one mana-producing creature.

   Steps

How does this combo work?
1
Activate any number of creatures by tapping them, adding at least 1.
2
Activate Romana II by paying 1 and tapping it, creating a copy of a creature token that entered the battlefield this turn.
3
When the creature token enters, Intruder Alarm triggers, untapping all creatures.
4
Repeat.

   Results

What do I get from this combo?
Infinite ETB
Infinite creature tokens
Infinite mana creatures you control can produce
Infinite untap of creatures
Infinite untap of creatures you control
The Sixth Doctor // Peri Brown
0.9%inclusion5 decks545 decks
Helga, Skittish Seer
0.0%inclusion3 decks19.1K decks
The Fourteenth Doctor // Susan Foreman
2.0%inclusion3 decks153 decks
Sisay, Weatherlight Captain
0.0%inclusion2 decks17.6K decks
Hashaton, Scarab's Fist
0.0%inclusion2 decks24K decks
Shorikai, Genesis Engine
0.0%inclusion2 decks20.1K decks
Claire D'Loon, Joy Sculptor
0.5%inclusion2 decks391 decks
The Fourteenth Doctor // K-9, Mark I
0.7%inclusion2 decks288 decks
The Second Doctor // Sarah Jane Smith
5.3%inclusion1 decks19 decks
Hylda of the Icy Crown
0.0%inclusion1 decks12K decks
Niko, Light of Hope
0.0%inclusion1 decks9.38K decks
Marneus Calgar
0.0%inclusion1 decks16.3K decks
Zur the Enchanter
0.0%inclusion1 decks15.8K decks
Kykar, Wind's Fury
0.0%inclusion1 decks13.5K decks
The Fourth Doctor // Sarah Jane Smith
0.1%inclusion1 decks1.12K decks
Brenard, Ginger Sculptor
0.0%inclusion1 decks8.80K decks
Esika, God of the Tree
0.0%inclusion1 decks24.3K decks
The Fourteenth Doctor // Adric, Mathematical Genius
1.0%inclusion1 decks100 decks
Kykar, Zephyr Awakener
0.0%inclusion1 decks3.46K decks
The Sixth Doctor // Ian Chesterton
0.6%inclusion1 decks176 decks
Urza, Chief Artificer
0.0%inclusion1 decks16.5K decks
Ellyn Harbreeze, Busybody // Shameless Charlatan
11%inclusion1 decks9 decks
Rigo, Streetwise Mentor
0.1%inclusion1 decks1.57K decks
The Fifth Doctor // Peri Brown
2.7%inclusion1 decks37 decks
New Cards
Berta, Wise Extrapolator
10%inclusion2 decks21 decks
Studious First-Year
10%inclusion2 decks21 decks
Emeritus of Truce
8.0%inclusion2 decks25 decks
Echocasting Symposium
7.4%inclusion2 decks27 decks
Pensive Professor
6.9%inclusion2 decks29 decks
High Synergy Cards
Adrix and Nev, Twincasters
60%inclusion38 decks63 decks
City of Death
46%inclusion29 decks63 decks
The War Doctor
41%inclusion7 decks17 decks
The Tenth Doctor
41%inclusion7 decks17 decks
The Twelfth Doctor
41%inclusion7 decks17 decks
The Fugitive Doctor
40%inclusion4 decks10 decks
Ghired, Mirror of the Wilds
40%inclusion4 decks10 decks
Bigger on the Inside
40%inclusion4 decks10 decks
Jhoira, Weatherlight Captain
41%inclusion7 decks17 decks
Trenzalore Clocktower
36%inclusion31 decks87 decks
Top Cards
Swords to Plowshares
57%inclusion50 decks87 decks
Heroic Intervention
46%inclusion29 decks63 decks
Path to Exile
46%inclusion40 decks87 decks
Counterspell
38%inclusion33 decks87 decks
Molten Gatekeeper
35%inclusion6 decks17 decks
Purphoros, God of the Forge
35%inclusion6 decks17 decks
Delighted Halfling
35%inclusion22 decks63 decks
The Fourth Doctor
32%inclusion20 decks63 decks
The Third Doctor
32%inclusion20 decks63 decks
Chulane, Teller of Tales
32%inclusion20 decks63 decks
Game Changers
Fierce Guardianship
18%inclusion16 decks87 decks
Enlightened Tutor
15%inclusion13 decks87 decks
Seedborn Muse
14%inclusion9 decks63 decks
Force of Will
14%inclusion12 decks87 decks
Farewell
14%inclusion12 decks87 decks
Worldly Tutor
13%inclusion8 decks63 decks
Ancient Tomb
13%inclusion11 decks87 decks
Grand Arbiter Augustin IV
10%inclusion9 decks87 decks
Mana Vault
10%inclusion9 decks87 decks
Gaea's Cradle
10%inclusion6 decks63 decks
Creatures
Sharuum the Hegemon
33%inclusion3 decks9 decks
Syr Konrad, the Grim
33%inclusion3 decks9 decks
Birds of Paradise
32%inclusion20 decks63 decks
Bloom Tender
30%inclusion19 decks63 decks
Noble Hierarch
30%inclusion19 decks63 decks
Ioreth of the Healing House
30%inclusion26 decks87 decks
The Ninth Doctor
29%inclusion5 decks17 decks
Adric, Mathematical Genius
29%inclusion25 decks87 decks
Raff Capashen, Ship's Mage
29%inclusion25 decks87 decks
Mondrak, Glory Dominus
29%inclusion25 decks87 decks
The Fifth Doctor
24%inclusion21 decks87 decks
The Thirteenth Doctor
24%inclusion15 decks63 decks
Selvala, Heart of the Wilds
24%inclusion15 decks63 decks
Faeburrow Elder
24%inclusion15 decks63 decks
River Song
24%inclusion4 decks17 decks
Jhoira's Familiar
23%inclusion20 decks87 decks
Ojer Taq, Deepest Foundation
23%inclusion20 decks87 decks
The Sixth Doctor
22%inclusion14 decks63 decks
Loran of the Third Path
22%inclusion19 decks87 decks
K-9, Mark I
21%inclusion18 decks87 decks
Esper Sentinel
21%inclusion18 decks87 decks
Serah Farron
20%inclusion9 decks44 decks
Auton Soldier
20%inclusion17 decks87 decks
Solemn Simulacrum
20%inclusion17 decks87 decks
Samwise Gamgee
19%inclusion12 decks63 decks
Yasmin Khan
18%inclusion3 decks17 decks
Cadric, Soul Kindler
18%inclusion3 decks17 decks
Professional Face-Breaker
18%inclusion3 decks17 decks
Inga and Esika
17%inclusion11 decks63 decks
Jaheira, Friend of the Forest
17%inclusion11 decks63 decks
Peregrin Took
17%inclusion11 decks63 decks
Kinnan, Bonder Prodigy
17%inclusion11 decks63 decks
Shalai, Voice of Plenty
17%inclusion11 decks63 decks
The Second Doctor
17%inclusion15 decks87 decks
Sakashima of a Thousand Faces
17%inclusion15 decks87 decks
Gandalf the White
16%inclusion14 decks87 decks
The Eighth Doctor
15%inclusion13 decks87 decks
Susan Foreman
14%inclusion9 decks63 decks
Alistair, the Brigadier
14%inclusion9 decks63 decks
Reki, the History of Kamigawa
14%inclusion9 decks63 decks
Peri Brown
14%inclusion12 decks87 decks
Ornithopter of Paradise
14%inclusion12 decks87 decks
Trostani, Selesnya's Voice
13%inclusion8 decks63 decks
Rhys the Redeemed
13%inclusion8 decks63 decks
Tatyova, Benthic Druid
13%inclusion8 decks63 decks
Avacyn's Pilgrim
13%inclusion8 decks63 decks
Elvish Mystic
13%inclusion8 decks63 decks
Llanowar Elves
13%inclusion8 decks63 decks
The First Doctor
13%inclusion11 decks87 decks
Silver Myr
13%inclusion11 decks87 decks
Instants
Second Harvest
29%inclusion18 decks63 decks
Beast Within
25%inclusion16 decks63 decks
An Offer You Can't Refuse
21%inclusion18 decks87 decks
Everybody Lives!
17%inclusion15 decks87 decks
Negate
16%inclusion14 decks87 decks
Sundering Growth
16%inclusion10 decks63 decks
Arcane Denial
15%inclusion13 decks87 decks
Growth Spiral
14%inclusion9 decks63 decks
Reverse the Polarity
13%inclusion11 decks87 decks
Teferi's Protection
11%inclusion10 decks87 decks
Brainstorm
11%inclusion10 decks87 decks
Generous Gift
11%inclusion10 decks87 decks
Cyclonic Rift
11%inclusion10 decks87 decks
Dovin's Veto
10%inclusion9 decks87 decks
Eladamri's Call
10%inclusion6 decks63 decks
Mana Drain
9.2%inclusion8 decks87 decks
Clockspinning
8.0%inclusion7 decks87 decks
Clever Concealment
8.0%inclusion7 decks87 decks
Stroke of Midnight
8.0%inclusion7 decks87 decks
Swan Song
8.0%inclusion7 decks87 decks
Time Lord Regeneration
6.9%inclusion6 decks87 decks
Return to Dust
6.9%inclusion6 decks87 decks
Three Steps Ahead
6.9%inclusion6 decks87 decks
Flawless Maneuver
6.9%inclusion6 decks87 decks
Mystical Tutor
6.9%inclusion6 decks87 decks
Frantic Search
6.9%inclusion6 decks87 decks
Crop Rotation
6.3%inclusion4 decks63 decks
Mirrorform
5.8%inclusion3 decks52 decks
Rootborn Defenses
5.7%inclusion5 decks87 decks
Muddle the Mixture
5.7%inclusion5 decks87 decks
Dramatic Reversal
5.7%inclusion5 decks87 decks
Silence
5.7%inclusion5 decks87 decks
Pact of Negation
5.7%inclusion5 decks87 decks
Force of Negation
5.7%inclusion5 decks87 decks
Sorceries
Three Visits
32%inclusion20 decks63 decks
Rousing Refrain
29%inclusion5 decks17 decks
Farseek
22%inclusion14 decks63 decks
Nature's Lore
21%inclusion13 decks63 decks
Creative Technique
18%inclusion3 decks17 decks
Will of the Jeskai
18%inclusion3 decks17 decks
Expressive Iteration
18%inclusion3 decks17 decks
Rampant Growth
16%inclusion10 decks63 decks
Twice Upon a Time
15%inclusion13 decks87 decks
Austere Command
15%inclusion13 decks87 decks
The Five Doctors
14%inclusion9 decks63 decks
Explore
14%inclusion9 decks63 decks
Cultivate
14%inclusion9 decks63 decks
Karn's Temporal Sundering
13%inclusion11 decks87 decks
Quantum Misalignment
11%inclusion10 decks87 decks
Doppelgang
11%inclusion7 decks63 decks
Search for Glory
10%inclusion9 decks87 decks
Kodama's Reach
10%inclusion6 decks63 decks
Traverse Eternity
8.0%inclusion7 decks87 decks
Urza's Ruinous Blast
8.0%inclusion7 decks87 decks
Rite of Replication
8.0%inclusion7 decks87 decks
Idyllic Tutor
8.0%inclusion7 decks87 decks
Fabricate
8.0%inclusion7 decks87 decks
Ponder
8.0%inclusion7 decks87 decks
Kamahl's Druidic Vow
7.9%inclusion5 decks63 decks
Crisis of Conscience
6.9%inclusion6 decks87 decks
Irenicus's Vile Duplication
6.9%inclusion6 decks87 decks
Green Sun's Zenith
6.3%inclusion4 decks63 decks
Season of Weaving
5.9%inclusion5 decks85 decks
Replication Technique
5.7%inclusion5 decks87 decks
Utility Artifacts
Lightning Greaves
29%inclusion25 decks87 decks
Twinning Staff
28%inclusion24 decks87 decks
TARDIS
21%inclusion18 decks87 decks
Esika's Chariot
21%inclusion13 decks63 decks
The Seriema
16%inclusion10 decks62 decks
Swiftfoot Boots
15%inclusion13 decks87 decks
Thousand-Year Elixir
13%inclusion11 decks87 decks
Idol of Oblivion
11%inclusion10 decks87 decks
The Great Henge
11%inclusion7 decks63 decks
Nuka-Cola Vending Machine
10%inclusion9 decks87 decks
Ashnod's Altar
10%inclusion9 decks87 decks
Helm of the Host
9.2%inclusion8 decks87 decks
Heroes' Podium
8.0%inclusion7 decks87 decks
Chimil, the Inner Sun
8.0%inclusion7 decks87 decks
Shorikai, Genesis Engine
8.0%inclusion7 decks87 decks
Sensei's Divining Top
8.0%inclusion7 decks87 decks
The One Ring
8.0%inclusion7 decks87 decks
Vedalken Orrery
6.9%inclusion6 decks87 decks
Cloud Key
6.9%inclusion6 decks87 decks
Strionic Resonator
6.9%inclusion6 decks87 decks
Unwinding Clock
6.9%inclusion6 decks87 decks
Helm of Awakening
5.7%inclusion5 decks87 decks
Mirror Box
5.7%inclusion5 decks87 decks
Amulet of Vigor
5.7%inclusion5 decks87 decks
Staff of Domination
5.7%inclusion5 decks87 decks
Isochron Scepter
5.7%inclusion5 decks87 decks
Mystic Forge
5.7%inclusion5 decks87 decks
Aetherflux Reservoir
5.7%inclusion5 decks87 decks
Mithril Coat
5.7%inclusion5 decks87 decks
Enchantments
Three Blind Mice
25%inclusion22 decks87 decks
Spider-Verse
23%inclusion3 decks13 decks
Doubling Season
22%inclusion14 decks63 decks
Parallel Lives
19%inclusion12 decks63 decks
The Lost and the Damned
18%inclusion3 decks17 decks
Sunbird's Invocation
18%inclusion3 decks17 decks
Impact Tremors
18%inclusion3 decks17 decks
Rhystic Study
17%inclusion15 decks87 decks
Gallifrey Stands
16%inclusion14 decks87 decks
Leyline of Anticipation
16%inclusion14 decks87 decks
Anointed Procession
16%inclusion14 decks87 decks
Smothering Tithe
16%inclusion14 decks87 decks
Freed from the Real
15%inclusion13 decks87 decks
Simic Ascendancy
14%inclusion9 decks63 decks
Pemmin's Aura
14%inclusion12 decks87 decks
Battle for Bretagard
13%inclusion8 decks63 decks
Concordant Crossroads
13%inclusion8 decks63 decks
Propaganda
13%inclusion11 decks87 decks
Mystic Remora
13%inclusion11 decks87 decks
The Eleventh Hour
11%inclusion10 decks87 decks
An Unearthly Child
10%inclusion9 decks87 decks
Flowering of the White Tree
10%inclusion9 decks87 decks
Cryptolith Rite
10%inclusion6 decks63 decks
Mechanized Production
9.2%inclusion8 decks87 decks
Ghostly Prison
9.2%inclusion8 decks87 decks
Extravagant Replication
8.0%inclusion7 decks87 decks
Primal Vigor
7.9%inclusion5 decks63 decks
Growing Rites of Itlimoc
7.9%inclusion5 decks63 decks
Garruk's Uprising
7.9%inclusion5 decks63 decks
Caretaker's Talent
7.1%inclusion6 decks85 decks
Moonlit Meditation
7.0%inclusion4 decks57 decks
The Night of the Doctor
6.9%inclusion6 decks87 decks
Growing Ranks
6.3%inclusion4 decks63 decks
Elven Chorus
6.3%inclusion4 decks63 decks
Song of the Worldsoul
5.7%inclusion5 decks87 decks
War of the Last Alliance
5.7%inclusion5 decks87 decks
Elspeth Conquers Death
5.7%inclusion5 decks87 decks
Unstoppable Plan
5.4%inclusion4 decks74 decks
Planeswalkers
Elspeth, Storm Slayer
19%inclusion13 decks69 decks
Teferi, Who Slows the Sunset
18%inclusion16 decks87 decks
Oko, Thief of Crowns
11%inclusion7 decks63 decks
Kiora, Master of the Depths
10%inclusion6 decks63 decks
Teferi, Temporal Archmage
9.2%inclusion8 decks87 decks
Nissa, Genesis Mage
7.9%inclusion5 decks63 decks
Teferi, Time Raveler
6.9%inclusion6 decks87 decks
Utility Lands
Bojuka Bog
44%inclusion4 decks9 decks
Reliquary Tower
38%inclusion33 decks87 decks
Alchemist's Refuge
21%inclusion13 decks63 decks
Boseiju, Who Endures
21%inclusion13 decks63 decks
Minamo, School at Water's Edge
15%inclusion13 decks87 decks
Yavimaya, Cradle of Growth
15%inclusion13 decks87 decks
Otawara, Soaring City
15%inclusion13 decks87 decks
Urza's Saga
11%inclusion10 decks87 decks
Rogue's Passage
11%inclusion10 decks87 decks
Temple of the False God
10%inclusion9 decks87 decks
Hall of Heliod's Generosity
9.2%inclusion8 decks87 decks
Adagia, Windswept Bastion
8.8%inclusion5 decks57 decks
Academy Ruins
8.0%inclusion7 decks87 decks
Eiganjo, Seat of the Empire
8.0%inclusion7 decks87 decks
Buried Ruin
6.9%inclusion6 decks87 decks
Dryad Arbor
6.3%inclusion4 decks63 decks
Rivendell
5.7%inclusion5 decks87 decks
Minas Tirith
5.7%inclusion5 decks87 decks
Seat of the Synod
5.7%inclusion5 decks87 decks
Mana Artifacts
Sol Ring
93%inclusion81 decks87 decks
Arcane Signet
87%inclusion76 decks87 decks
Talisman of Progress
49%inclusion43 decks87 decks
Talisman of Unity
48%inclusion30 decks63 decks
Talisman of Curiosity
46%inclusion29 decks63 decks
Thought Vessel
31%inclusion27 decks87 decks
Fellwar Stone
25%inclusion22 decks87 decks
Talisman of Conviction
24%inclusion4 decks17 decks
Talisman of Creativity
24%inclusion4 decks17 decks
Sonic Screwdriver
22%inclusion19 decks87 decks
Mind Stone
20%inclusion17 decks87 decks
Azorius Signet
17%inclusion15 decks87 decks
Relic of Legends
15%inclusion13 decks87 decks
Selesnya Signet
13%inclusion8 decks63 decks
Simic Signet
13%inclusion8 decks63 decks
Chromatic Lantern
13%inclusion11 decks87 decks
Gilded Lotus
11%inclusion10 decks87 decks
Thran Dynamo
10%inclusion9 decks87 decks
Commander's Sphere
10%inclusion9 decks87 decks
Crystal Skull, Isu Spyglass
7.0%inclusion6 decks86 decks
Five Hundred Year Diary
6.9%inclusion6 decks87 decks
Patriar's Seal
6.9%inclusion6 decks87 decks
Basalt Monolith
6.9%inclusion6 decks87 decks
Midnight Clock
6.9%inclusion6 decks87 decks
Chrome Mox
5.7%inclusion5 decks87 decks
Lotus Petal
5.7%inclusion5 decks87 decks
Lands
Command Tower
93%inclusion81 decks87 decks
Exotic Orchard
61%inclusion53 decks87 decks
Rockfall Vale
60%inclusion6 decks10 decks
Sunken Hollow
56%inclusion5 decks9 decks
Temple Garden
54%inclusion34 decks63 decks
Glacial Fortress
51%inclusion44 decks87 decks
Hallowed Fountain
49%inclusion43 decks87 decks
Spara's Headquarters
44%inclusion28 decks63 decks
Arcane Sanctum
44%inclusion4 decks9 decks
Drowned Catacomb
44%inclusion4 decks9 decks
Godless Shrine
44%inclusion4 decks9 decks
Watery Grave
44%inclusion4 decks9 decks
Prairie Stream
44%inclusion38 decks87 decks
Dreamroot Cascade
43%inclusion27 decks63 decks
Deserted Beach
41%inclusion36 decks87 decks
Breeding Pool
41%inclusion26 decks63 decks
Sundown Pass
41%inclusion7 decks17 decks
Stormcarved Coast
41%inclusion7 decks17 decks
Steam Vents
41%inclusion7 decks17 decks
Overgrown Farmland
38%inclusion24 decks63 decks
Seaside Citadel
38%inclusion24 decks63 decks
Hinterland Harbor
37%inclusion23 decks63 decks
Sunbaked Canyon
35%inclusion6 decks17 decks
Canopy Vista
35%inclusion22 decks63 decks
Shipwreck Marsh
33%inclusion3 decks9 decks
Raffine's Tower
33%inclusion3 decks9 decks
Sunpetal Grove
33%inclusion21 decks63 decks
Isolated Chapel
33%inclusion3 decks9 decks
Flooded Strand
31%inclusion27 decks87 decks
Fiery Islet
29%inclusion5 decks17 decks
Misty Rainforest
29%inclusion25 decks87 decks
Yavimaya Coast
29%inclusion18 decks63 decks
Path of Ancestry
26%inclusion23 decks87 decks
Horizon Canopy
25%inclusion16 decks63 decks
Waterlogged Grove
25%inclusion16 decks63 decks
Brushland
25%inclusion16 decks63 decks
Bountiful Promenade
25%inclusion16 decks63 decks
Rejuvenating Springs
25%inclusion16 decks63 decks
Windswept Heath
24%inclusion21 decks87 decks
Mystic Monastery
24%inclusion4 decks17 decks
Sea of Clouds
23%inclusion20 decks87 decks
Adarkar Wastes
22%inclusion19 decks87 decks
Port Town
21%inclusion18 decks87 decks
Evolving Wilds
21%inclusion18 decks87 decks
Gallifrey Council Chamber
20%inclusion17 decks87 decks
Skycloud Expanse
20%inclusion17 decks87 decks
Savannah
19%inclusion12 decks63 decks
Tropical Island
19%inclusion12 decks63 decks
Tundra
18%inclusion16 decks87 decks
Raugrin Triome
18%inclusion3 decks17 decks