Four Knocks (Card)

Four Knocks
In 14416 decks 0.45% of 3175308 decks
Background image for Budget Precon Upgrade Cards for Counter Intelligence
Tyler Bucks
Aug 5, 2025
Budget Precon Upgrade Cards for Counter Intelligence
Looking to upgrade your Counter Intelligence precon on a budget? Our budget expert Tyler is here with 14 powerful cards to add.
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
The Tenth Doctor // Rose Tyler
80.49% of 5996 decks 4826 decks
Atraxa, Praetors' Voice
3.95% of 37165 decks 1467 decks
Giada, Font of Hope
2.32% of 24993 decks 579 decks
The Eleventh Doctor // Amy Pond
47.29% of 1072 decks 507 decks
The War Doctor // Ryan Sinclair
25.49% of 1067 decks 272 decks
Kate Stewart
83.39% of 313 decks 261 decks
The Fourteenth Doctor // Clara Oswald
13.85% of 1646 decks 228 decks
The Fourteenth Doctor // Rose Noble
15.06% of 1474 decks 222 decks
The Tenth Doctor // Clara Oswald
22.54% of 865 decks 195 decks
Wilfred Mott
55.62% of 329 decks 183 decks
The Face of Boe
25.12% of 649 decks 163 decks
Ghen, Arcanum Weaver
5.32% of 2480 decks 132 decks
The War Doctor // Clara Oswald
10.52% of 1207 decks 127 decks
Perrie, the Pulverizer
4.39% of 1687 decks 74 decks
Daxos the Returned
4.03% of 1785 decks 72 decks
Zur the Enchanter
0.53% of 13091 decks 69 decks
Neva, Stalked by Nightmares
12.69% of 520 decks 66 decks
Anikthea, Hand of Erebos
0.52% of 12788 decks 66 decks
The War Doctor // K-9, Mark I
12.14% of 519 decks 63 decks
Norika Yamazaki, the Poet
18.38% of 321 decks 59 decks
New Cards
Patrolling Peacemaker
7% of 1976 decks +6% synergy
Insight Engine
6% of 1255 decks +5% synergy
Radiant Summit
5% of 1173 decks +5% synergy
Terrasymbiosis
5% of 399 decks +5% synergy
Inspirit, Flagship Vessel
5% of 1008 decks +4% synergy
High Synergy Cards
The Ninth Doctor
69% of 7527 decks +68% synergy
Trenzalore Clocktower
68% of 9834 decks +68% synergy
The Parting of the Ways
66% of 8884 decks +65% synergy
The War Doctor
65% of 8882 decks +64% synergy
As Foretold
64% of 9840 decks +64% synergy
Inspiring Refrain
64% of 9840 decks +63% synergy
Wibbly-wobbly, Timey-wimey
61% of 9833 decks +61% synergy
Time Beetle
60% of 9833 decks +60% synergy
Regenerations Restored
59% of 9834 decks +59% synergy
Ecstatic Beauty
57% of 8879 decks +57% synergy
Top Cards
Judoon Enforcers
57% of 8879 decks +56% synergy
Dinosaurs on a Spaceship
56% of 8882 decks +55% synergy
The Eleventh Doctor
55% of 9834 decks +54% synergy
Swords to Plowshares
53% of 14416 decks +53% synergy
Star Whale
53% of 9833 decks +52% synergy
The Fugitive Doctor
53% of 1175 decks +52% synergy
Sibylline Soothsayer
52% of 8879 decks +52% synergy
All of History, All at Once
52% of 9833 decks +52% synergy
Jhoira of the Ghitu
51% of 7528 decks +51% synergy
Kate Stewart
51% of 7526 decks +51% synergy
Game Changers
Smothering Tithe
14% of 14416 decks +13% synergy
Rhystic Study
14% of 9840 decks +13% synergy
Teferi's Protection
12% of 14416 decks +12% synergy
Demonic Tutor
12% of 3324 decks +12% synergy
Cyclonic Rift
11% of 9840 decks +11% synergy
Jeska's Will
9% of 8884 decks +8% synergy
Vampiric Tutor
8% of 3324 decks +7% synergy
Enlightened Tutor
8% of 14416 decks +7% synergy
Fierce Guardianship
7% of 9840 decks +7% synergy
Mystical Tutor
6% of 9840 decks +6% synergy
Creatures
Amy Pond
45% of 8882 decks +44% synergy
Ezuri, Stalker of Spheres
42% of 2727 decks +42% synergy
Flesh Duplicate
40% of 9833 decks +40% synergy
Rory Williams
40% of 9834 decks +40% synergy
The Face of Boe
39% of 7528 decks +39% synergy
Evolution Sage
35% of 3487 decks +35% synergy
The Fourth Doctor
30% of 2727 decks +29% synergy
The Sixth Doctor
30% of 2722 decks +29% synergy
The Thirteenth Doctor
29% of 2727 decks +28% synergy
The Third Doctor
28% of 2722 decks +28% synergy
Dreamtide Whale
27% of 6408 decks +27% synergy
Ixhel, Scion of Atraxa
27% of 2150 decks +26% synergy
Wilfred Mott
26% of 14407 decks +26% synergy
The Twelfth Doctor
26% of 7527 decks +25% synergy
Rift Elemental
26% of 8884 decks +25% synergy
Sinister Concierge
26% of 9840 decks +25% synergy
Jhoira's Timebug
25% of 14416 decks +24% synergy
The Tenth Doctor
24% of 7528 decks +24% synergy
Aeon Chronicler
24% of 9840 decks +24% synergy
Voidwing Hybrid
24% of 2273 decks +23% synergy
Cankerbloom
23% of 3487 decks +23% synergy
Atraxi Warden
22% of 14403 decks +22% synergy
Sphinx of the Second Sun
21% of 9840 decks +21% synergy
Ichor Rats
20% of 3324 decks +19% synergy
Taigam, Master Opportunist
20% of 3030 decks +19% synergy
Bloated Contaminator
20% of 3487 decks +19% synergy
K-9, Mark I
18% of 9834 decks +18% synergy
Tainted Observer
18% of 2727 decks +18% synergy
Venerated Rotpriest
18% of 3487 decks +17% synergy
Donna Noble
18% of 8884 decks +17% synergy
Vega, the Watcher
18% of 9840 decks +17% synergy
Vorinclex, Monstrous Raider
18% of 3487 decks +17% synergy
Birds of Paradise
17% of 3487 decks +17% synergy
Contaminant Grafter
17% of 3487 decks +17% synergy
Idris, Soul of the TARDIS
17% of 7526 decks +17% synergy
Vishgraz, the Doomhive
17% of 2150 decks +16% synergy
Chronozoa
16% of 9840 decks +16% synergy
Clara Oswald
16% of 14407 decks +15% synergy
Deep-Sea Kraken
16% of 9840 decks +15% synergy
Plague Stinger
15% of 3324 decks +14% synergy
Thrummingbird
14% of 9840 decks +13% synergy
Blightbelly Rat
14% of 3324 decks +13% synergy
Tekuthal, Inquiry Dominus
13% of 9840 decks +13% synergy
Fathom Mage
13% of 2727 decks +13% synergy
Wild-Magic Sorcerer
13% of 8884 decks +13% synergy
Flaming Tyrannosaurus
13% of 8879 decks +13% synergy
Jenny, Generated Anomaly
13% of 8879 decks +12% synergy
Skithiryx, the Blight Dragon
13% of 3324 decks +12% synergy
The Second Doctor
13% of 9834 decks +12% synergy
Phyrexian Swarmlord
13% of 3487 decks +12% synergy
Instants
Clockspinning
51% of 9840 decks +50% synergy
Gallifrey Falls // No More
48% of 8879 decks +48% synergy
Path to Exile
44% of 14416 decks +43% synergy
Run for Your Life
41% of 7527 decks +40% synergy
Everybody Lives!
38% of 14407 decks +38% synergy
Heroic Intervention
29% of 3487 decks +28% synergy
Counterspell
23% of 9840 decks +23% synergy
Atomize
22% of 1595 decks +21% synergy
Chaos Warp
22% of 8884 decks +21% synergy
Vraska's Fall
22% of 3324 decks +21% synergy
Fury Charm
21% of 8884 decks +21% synergy
Beast Within
20% of 3487 decks +20% synergy
Suspend
19% of 9840 decks +18% synergy
Generous Gift
18% of 14416 decks +18% synergy
Infectious Bite
18% of 3487 decks +18% synergy
Timecrafting
17% of 8884 decks +16% synergy
Anguished Unmaking
16% of 3324 decks +15% synergy
Reverse the Polarity
14% of 9833 decks +14% synergy
Assassin's Trophy
14% of 2150 decks +13% synergy
Growth Spiral
13% of 2727 decks +13% synergy
Brainstorm
13% of 9840 decks +13% synergy
Stroke of Midnight
12% of 14416 decks +12% synergy
Brokers Confluence
12% of 2727 decks +11% synergy
Mutational Advantage
10% of 2034 decks +10% synergy
Experimental Augury
10% of 9840 decks +10% synergy
Dust of Moments
10% of 14416 decks +9% synergy
Time Lord Regeneration
10% of 9840 decks +9% synergy
Despark
9% of 3324 decks +9% synergy
Delay
9% of 9840 decks +8% synergy
Tainted Strike
9% of 3324 decks +8% synergy
Boros Charm
8% of 8884 decks +8% synergy
Void Rend
8% of 2273 decks +8% synergy
Mortify
8% of 3324 decks +8% synergy
Prologue to Phyresis
8% of 9840 decks +8% synergy
Negate
7% of 9840 decks +7% synergy
Arcane Denial
7% of 9840 decks +7% synergy
Delayed Blast Fireball
7% of 8884 decks +7% synergy
An Offer You Can't Refuse
7% of 9840 decks +6% synergy
Inspiring Call
7% of 3487 decks +6% synergy
Whisper of the Dross
6% of 3324 decks +6% synergy
Revitalizing Repast
6% of 1327 decks +6% synergy
Flawless Maneuver
6% of 14416 decks +6% synergy
Putrefy
6% of 2150 decks +5% synergy
Dovin's Veto
6% of 9840 decks +5% synergy
Reprieve
6% of 14416 decks +5% synergy
Mana Drain
5% of 9840 decks +5% synergy
Ripples of Potential
5% of 9076 decks +5% synergy
Akroma's Will
5% of 14416 decks +5% synergy
Deflecting Swat
5% of 8884 decks +5% synergy
Sorceries
Farseek
45% of 3487 decks +45% synergy
Farewell
45% of 14416 decks +45% synergy
Rousing Refrain
45% of 8884 decks +44% synergy
The Wedding of River Song
41% of 14407 decks +40% synergy
Cultivate
41% of 3487 decks +40% synergy
Ancestral Vision
30% of 9840 decks +30% synergy
Coward // Killer
29% of 8879 decks +29% synergy
Inevitable Betrayal
28% of 9840 decks +27% synergy
Nanogene Conversion
28% of 9833 decks +27% synergy
Three Visits
27% of 3487 decks +27% synergy
Fractured Identity
25% of 9840 decks +25% synergy
Everything Comes to Dust
24% of 14407 decks +23% synergy
Infectious Inquiry
23% of 3324 decks +23% synergy
Nature's Lore
22% of 3487 decks +21% synergy
Chronomantic Escape
21% of 14416 decks +21% synergy
Wheel of Fate
21% of 8884 decks +21% synergy
Rampant Growth
21% of 3487 decks +20% synergy
Unnatural Restoration
20% of 3487 decks +20% synergy
Phyresis Outbreak
20% of 3324 decks +19% synergy
The Five Doctors
19% of 3471 decks +19% synergy
Drown in Ichor
18% of 3324 decks +18% synergy
Kodama's Reach
18% of 3487 decks +18% synergy
Reality Strobe
17% of 9840 decks +17% synergy
Twice Upon a Time
15% of 9833 decks +15% synergy
Blasphemous Act
15% of 8884 decks +14% synergy
Tezzeret's Gambit
13% of 9840 decks +13% synergy
Arc Blade
12% of 8884 decks +12% synergy
Thirsting Roots
12% of 3487 decks +12% synergy
Damn
11% of 3324 decks +11% synergy
Into the Time Vortex
10% of 8879 decks +10% synergy
Austere Command
10% of 14416 decks +10% synergy
Ruinous Ultimatum
10% of 802 decks +9% synergy
Expand the Sphere
9% of 3487 decks +9% synergy
Ponder
9% of 9840 decks +9% synergy
Toxic Deluge
9% of 3324 decks +8% synergy
Explore
8% of 3487 decks +8% synergy
Time Wipe
8% of 9840 decks +8% synergy
Eerie Ultimatum
8% of 2150 decks +7% synergy
Quantum Misalignment
8% of 9833 decks +7% synergy
Night's Whisper
8% of 3324 decks +7% synergy
Contentious Plan
8% of 9840 decks +7% synergy
Mana Geyser
8% of 8884 decks +7% synergy
Time Stretch
8% of 9840 decks +7% synergy
Search for Tomorrow
7% of 3487 decks +7% synergy
Cut a Deal
7% of 14416 decks +6% synergy
Harmonize
6% of 3487 decks +6% synergy
Secret Rendezvous
6% of 14416 decks +6% synergy
Ensnared by the Mara
6% of 8813 decks +5% synergy
Preordain
6% of 9840 decks +5% synergy
Last Night Together
5% of 1174 decks +5% synergy
Utility Artifacts
Lightning Greaves
48% of 14416 decks +48% synergy
Rotating Fireplace
44% of 14403 decks +43% synergy
TARDIS
32% of 14416 decks +31% synergy
The Moment
23% of 14407 decks +23% synergy
Psychic Paper
23% of 14403 decks +22% synergy
The Pandorica
21% of 14407 decks +21% synergy
Swiftfoot Boots
20% of 14416 decks +20% synergy
Wedding Ring
20% of 14416 decks +19% synergy
RMS Titanic
15% of 8879 decks +14% synergy
The Millennium Calendar
13% of 13693 decks +12% synergy
Pearl Medallion
9% of 14416 decks +8% synergy
Wayfarer's Bauble
9% of 14416 decks +8% synergy
River Song's Diary
8% of 14410 decks +7% synergy
Scroll Rack
7% of 14416 decks +7% synergy
Archaeomancer's Map
6% of 14416 decks +5% synergy
Whispersilk Cloak
5% of 14416 decks +5% synergy
The Ozolith
5% of 14416 decks +5% synergy
Ozolith, the Shattered Spire
5% of 3487 decks +5% synergy
Enchantments
Bigger on the Inside
38% of 1175 decks +38% synergy
Crack in Time
36% of 14407 decks +36% synergy
Out of Time
33% of 14416 decks +32% synergy
Grasp of Fate
32% of 14416 decks +32% synergy
Phyrexian Arena
31% of 3324 decks +30% synergy
The Eleventh Hour
29% of 9840 decks +29% synergy
The Girl in the Fireplace
27% of 14410 decks +27% synergy
The Day of the Doctor
26% of 8882 decks +25% synergy
Brokers Ascendancy
25% of 2727 decks +25% synergy
Training Grounds
18% of 9840 decks +17% synergy
Passionate Archaeologist
17% of 8884 decks +17% synergy
Doubling Season
14% of 3487 decks +13% synergy
Paradox Haze
13% of 9840 decks +13% synergy
Leyline of the Guildpact
13% of 391 decks +12% synergy
Annie Joins Up
12% of 905 decks +12% synergy
Propaganda
12% of 9840 decks +11% synergy
Innkeeper's Talent
11% of 2076 decks +11% synergy
Black Market Connections
11% of 3324 decks +10% synergy
Inexorable Tide
10% of 9840 decks +10% synergy
Ghostly Prison
10% of 14416 decks +9% synergy
Gallifrey Stands
9% of 9834 decks +9% synergy
City of Death
9% of 3487 decks +8% synergy
Hardened Scales
8% of 3487 decks +8% synergy
An Unearthly Child
8% of 9834 decks +8% synergy
Land Tax
8% of 14416 decks +7% synergy
Fugitive of the Judoon
7% of 3487 decks +7% synergy
The Flux
7% of 8884 decks +7% synergy
Dawn of a New Age
7% of 14416 decks +6% synergy
Darksteel Mutation
7% of 14416 decks +6% synergy
Captive Audience
6% of 802 decks +6% synergy
Enchantress's Presence
6% of 3487 decks +6% synergy
Wild Growth
6% of 3487 decks +6% synergy
Kaya's Ghostform
6% of 3324 decks +6% synergy
The Eldest Reborn
6% of 3324 decks +6% synergy
Necrogen Communion
6% of 3324 decks +6% synergy
Heaven Sent
6% of 7527 decks +6% synergy
Windcrag Siege
6% of 2766 decks +6% synergy
Simic Ascendancy
6% of 2727 decks +6% synergy
Sylvan Library
6% of 3487 decks +6% synergy
Shadow of the Second Sun
6% of 6498 decks +6% synergy
Court of Garenbrig
6% of 3487 decks +5% synergy
Mirari's Wake
6% of 3487 decks +5% synergy
Trouble in Pairs
6% of 11541 decks +5% synergy
Ripples of Undeath
6% of 2190 decks +5% synergy
Smuggler's Share
5% of 14416 decks +5% synergy
Utopia Sprawl
5% of 3487 decks +5% synergy
Binding the Old Gods
5% of 2150 decks +5% synergy
Disturbing Mirth
5% of 474 decks +5% synergy
Mystic Remora
5% of 9840 decks +5% synergy
Omniscience
5% of 9840 decks +5% synergy
Planeswalkers
Vraska, Betrayal's Sting
28% of 3324 decks +28% synergy
Tamiyo, Field Researcher
13% of 2727 decks +13% synergy
Ajani, Sleeper Agent
13% of 3487 decks +13% synergy
Quintorius Kand
9% of 8372 decks +9% synergy
Oko, Thief of Crowns
9% of 2727 decks +8% synergy
Wrenn and Realmbreaker
6% of 3487 decks +5% synergy
Tamiyo, Compleated Sage
5% of 2727 decks +5% synergy
Ashiok, Dream Render
5% of 2273 decks +5% synergy
Ajani, the Greathearted
5% of 3487 decks +5% synergy
Utility Lands
Rogue's Passage
47% of 14416 decks +46% synergy
War Room
28% of 14416 decks +28% synergy
Temple of the False God
26% of 14416 decks +26% synergy
Ominous Cemetery
24% of 14403 decks +24% synergy
Thespian's Stage
23% of 14416 decks +23% synergy
Reliquary Tower
23% of 14416 decks +22% synergy
Bojuka Bog
18% of 3324 decks +18% synergy
Karn's Bastion
14% of 14416 decks +13% synergy
Gavony Township
10% of 3487 decks +10% synergy
Dreadship Reef
9% of 2273 decks +9% synergy
Boseiju, Who Endures
8% of 3487 decks +8% synergy
Minas Tirith
7% of 14416 decks +7% synergy
Vault of the Archangel
7% of 3324 decks +6% synergy
Otawara, Soaring City
6% of 9840 decks +5% synergy
Nesting Grounds
5% of 14416 decks +5% synergy
Hall of Heliod's Generosity
5% of 14416 decks +5% synergy
Saltcrusted Steppe
5% of 3487 decks +5% synergy
Eiganjo, Seat of the Empire
5% of 14416 decks +5% synergy
Emeria, the Sky Ruin
5% of 14416 decks +5% synergy
Windbrisk Heights
5% of 14416 decks +5% synergy
Mana Artifacts
Sol Ring
86% of 14416 decks +86% synergy
Arcane Signet
82% of 14416 decks +82% synergy
Talisman of Creativity
67% of 7528 decks +67% synergy
Talisman of Conviction
64% of 8884 decks +63% synergy
Sonic Screwdriver
41% of 14407 decks +41% synergy
Mind Stone
36% of 14416 decks +35% synergy
Thought Vessel
35% of 14416 decks +35% synergy
Sol Talisman
24% of 14416 decks +24% synergy
Talisman of Progress
23% of 9840 decks +22% synergy
Orzhov Signet
20% of 3324 decks +19% synergy
Rakdos Signet
19% of 802 decks +18% synergy
Talisman of Impulse
18% of 1175 decks +18% synergy
Talisman of Indulgence
17% of 802 decks +17% synergy
Talisman of Hierarchy
17% of 3324 decks +16% synergy
Fellwar Stone
15% of 14416 decks +14% synergy
Mox Tantalite
14% of 14416 decks +14% synergy
Boros Signet
13% of 8884 decks +13% synergy
Hourglass of the Lost
13% of 9587 decks +12% synergy
Commander's Sphere
12% of 14416 decks +12% synergy
Talisman of Unity
12% of 3487 decks +11% synergy
Talisman of Curiosity
11% of 2727 decks +11% synergy
Lotus Bloom
11% of 14416 decks +10% synergy
Everflowing Chalice
11% of 14416 decks +10% synergy
Chromatic Lantern
10% of 14416 decks +10% synergy
Azorius Signet
10% of 9840 decks +9% synergy
Izzet Signet
9% of 7528 decks +9% synergy
Astral Cornucopia
9% of 14416 decks +8% synergy
Talisman of Dominance
8% of 2273 decks +8% synergy
Dimir Signet
8% of 2273 decks +7% synergy
Marble Diamond
5% of 14416 decks +5% synergy
Glistening Sphere
5% of 14416 decks +5% synergy
Replicating Ring
5% of 14416 decks +5% synergy
Lands
Command Tower
80% of 14416 decks +80% synergy
Stormcarved Coast
75% of 7528 decks +75% synergy
Mystic Monastery
74% of 7528 decks +74% synergy
Sundown Pass
67% of 8884 decks +67% synergy
Deserted Beach
62% of 9840 decks +61% synergy
Glacial Fortress
61% of 9840 decks +60% synergy
Exotic Orchard
59% of 14416 decks +59% synergy
Prairie Stream
58% of 9840 decks +57% synergy
Frostboil Snarl
54% of 7528 decks +54% synergy
Temple of Epiphany
53% of 7528 decks +53% synergy
Fiery Islet
53% of 7528 decks +53% synergy
Furycalm Snarl
51% of 8884 decks +51% synergy
Temple of Triumph
51% of 8884 decks +50% synergy
Path of Ancestry
49% of 14416 decks +49% synergy
Sunbaked Canyon
47% of 8884 decks +46% synergy
Skycloud Expanse
44% of 9840 decks +44% synergy
Port Town
44% of 9840 decks +44% synergy
Temple of Enlightenment
44% of 9840 decks +43% synergy
Seaside Citadel
42% of 2727 decks +41% synergy
Irrigated Farmland
38% of 9840 decks +37% synergy
Sandsteppe Citadel
37% of 2150 decks +37% synergy
Arcane Sanctum
37% of 2273 decks +37% synergy
Canopy Vista
37% of 3487 decks +36% synergy
Frontier Bivouac
36% of 954 decks +35% synergy
Myriad Landscape
35% of 14416 decks +35% synergy
Evolving Wilds
34% of 14416 decks +33% synergy
Opulent Palace
33% of 1956 decks +33% synergy
Rockfall Vale
33% of 1175 decks +33% synergy
Overgrown Tomb
33% of 2150 decks +33% synergy
Godless Shrine
33% of 3324 decks +33% synergy
Watery Grave
33% of 2273 decks +32% synergy
Zagoth Triome
33% of 1956 decks +32% synergy
Indatha Triome
32% of 2150 decks +32% synergy
Cinder Glade
32% of 1175 decks +32% synergy
Spara's Headquarters
31% of 2727 decks +30% synergy
Breeding Pool
31% of 2727 decks +30% synergy
Temple Garden
30% of 3487 decks +30% synergy
Nomad Outpost
30% of 802 decks +29% synergy
Raffine's Tower
30% of 2273 decks +29% synergy
Thriving Bluff
29% of 8884 decks +29% synergy
Hallowed Fountain
28% of 9840 decks +28% synergy
Raugrin Triome
28% of 7528 decks +27% synergy
Dreamroot Cascade
27% of 2727 decks +27% synergy
Steam Vents
25% of 7528 decks +25% synergy
Caves of Koilos
25% of 3324 decks +25% synergy
Sacred Foundry
25% of 8884 decks +24% synergy
Overgrown Farmland
25% of 3487 decks +24% synergy
The World Tree
24% of 467 decks +24% synergy
Spectator Seating
23% of 8884 decks +23% synergy
Training Center
23% of 7528 decks +22% synergy