Four Knocks (Card)

Four Knocks
In 14259 decks 0.45% of 3143412 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
80.48% of 5932 decks 4774 decks
Atraxa, Praetors' Voice
3.94% of 37085 decks 1463 decks
Giada, Font of Hope
2.31% of 24805 decks 573 decks
The Eleventh Doctor // Amy Pond
47.35% of 1058 decks 501 decks
The War Doctor // Ryan Sinclair
25.61% of 1058 decks 271 decks
Kate Stewart
83.66% of 306 decks 256 decks
The Fourteenth Doctor // Clara Oswald
13.97% of 1632 decks 228 decks
The Fourteenth Doctor // Rose Noble
15.22% of 1459 decks 222 decks
The Tenth Doctor // Clara Oswald
22.61% of 858 decks 194 decks
Wilfred Mott
55.83% of 326 decks 182 decks
The Face of Boe
24.88% of 651 decks 162 decks
Ghen, Arcanum Weaver
5.26% of 2470 decks 130 decks
The War Doctor // Clara Oswald
10.48% of 1193 decks 125 decks
Perrie, the Pulverizer
4.33% of 1686 decks 73 decks
Daxos the Returned
4.10% of 1781 decks 73 decks
Zur the Enchanter
0.52% of 13011 decks 68 decks
Anikthea, Hand of Erebos
0.51% of 12853 decks 66 decks
Neva, Stalked by Nightmares
12.24% of 531 decks 65 decks
The War Doctor // K-9, Mark I
12.06% of 514 decks 62 decks
Norika Yamazaki, the Poet
18.61% of 317 decks 59 decks
New Cards
Patrolling Peacemaker
7% of 1750 decks +6% synergy
Insight Engine
6% of 1112 decks +5% synergy
Radiant Summit
5% of 1037 decks +5% synergy
Inspirit, Flagship Vessel
5% of 891 decks +4% synergy
Terrasymbiosis
4% of 361 decks +4% synergy
High Synergy Cards
The Ninth Doctor
69% of 7442 decks +68% synergy
Trenzalore Clocktower
68% of 9732 decks +68% synergy
The Parting of the Ways
66% of 8783 decks +65% synergy
The War Doctor
65% of 8781 decks +64% synergy
As Foretold
64% of 9739 decks +64% synergy
Inspiring Refrain
64% of 9739 decks +63% synergy
Wibbly-wobbly, Timey-wimey
61% of 9731 decks +61% synergy
Time Beetle
60% of 9731 decks +60% synergy
Regenerations Restored
59% of 9732 decks +59% synergy
Ecstatic Beauty
57% of 8778 decks +57% synergy
Top Cards
Judoon Enforcers
57% of 8778 decks +56% synergy
Dinosaurs on a Spaceship
56% of 8781 decks +55% synergy
The Eleventh Doctor
55% of 9732 decks +54% synergy
Swords to Plowshares
53% of 14259 decks +53% synergy
The Fugitive Doctor
53% of 1166 decks +52% synergy
Star Whale
53% of 9731 decks +52% synergy
Sibylline Soothsayer
52% of 8778 decks +52% synergy
All of History, All at Once
52% of 9731 decks +52% synergy
Kate Stewart
51% of 7441 decks +51% synergy
Jhoira of the Ghitu
51% of 7443 decks +51% synergy
Game Changers
Smothering Tithe
14% of 14259 decks +13% synergy
Rhystic Study
14% of 9739 decks +13% synergy
Teferi's Protection
12% of 14259 decks +12% synergy
Demonic Tutor
12% of 3300 decks +12% synergy
Cyclonic Rift
11% of 9739 decks +11% synergy
Jeska's Will
9% of 8783 decks +8% synergy
Vampiric Tutor
8% of 3300 decks +7% synergy
Enlightened Tutor
8% of 14259 decks +7% synergy
Fierce Guardianship
7% of 9739 decks +7% synergy
Mystical Tutor
6% of 9739 decks +6% synergy
Creatures
Amy Pond
45% of 8781 decks +45% synergy
Ezuri, Stalker of Spheres
42% of 2714 decks +42% synergy
Flesh Duplicate
40% of 9731 decks +40% synergy
Rory Williams
40% of 9732 decks +40% synergy
The Face of Boe
39% of 7443 decks +39% synergy
Evolution Sage
36% of 3465 decks +35% synergy
The Fourth Doctor
30% of 2713 decks +29% synergy
The Sixth Doctor
30% of 2708 decks +29% synergy
The Thirteenth Doctor
29% of 2713 decks +28% synergy
The Third Doctor
28% of 2708 decks +28% synergy
Dreamtide Whale
27% of 6302 decks +27% synergy
Ixhel, Scion of Atraxa
27% of 2139 decks +26% synergy
Wilfred Mott
26% of 14243 decks +26% synergy
The Twelfth Doctor
26% of 7442 decks +26% synergy
Rift Elemental
26% of 8783 decks +25% synergy
Sinister Concierge
26% of 9739 decks +25% synergy
Jhoira's Timebug
25% of 14259 decks +24% synergy
The Tenth Doctor
25% of 7443 decks +24% synergy
Aeon Chronicler
24% of 9739 decks +24% synergy
Voidwing Hybrid
24% of 2258 decks +23% synergy
Cankerbloom
23% of 3465 decks +23% synergy
Atraxi Warden
22% of 14239 decks +22% synergy
Sphinx of the Second Sun
21% of 9739 decks +21% synergy
Ichor Rats
20% of 3300 decks +20% synergy
Taigam, Master Opportunist
20% of 2904 decks +19% synergy
Bloated Contaminator
20% of 3465 decks +19% synergy
K-9, Mark I
19% of 9732 decks +18% synergy
Tainted Observer
18% of 2714 decks +18% synergy
Venerated Rotpriest
18% of 3465 decks +17% synergy
Donna Noble
18% of 8783 decks +17% synergy
Vega, the Watcher
18% of 9739 decks +17% synergy
Vorinclex, Monstrous Raider
18% of 3465 decks +17% synergy
Contaminant Grafter
17% of 3465 decks +17% synergy
Birds of Paradise
17% of 3465 decks +17% synergy
Idris, Soul of the TARDIS
17% of 7441 decks +17% synergy
Vishgraz, the Doomhive
17% of 2139 decks +17% synergy
Chronozoa
16% of 9739 decks +16% synergy
Clara Oswald
16% of 14243 decks +15% synergy
Deep-Sea Kraken
16% of 9739 decks +15% synergy
Plague Stinger
15% of 3300 decks +15% synergy
Thrummingbird
14% of 9739 decks +13% synergy
Blightbelly Rat
14% of 3300 decks +13% synergy
Fathom Mage
13% of 2714 decks +13% synergy
Tekuthal, Inquiry Dominus
13% of 9739 decks +13% synergy
Wild-Magic Sorcerer
13% of 8783 decks +13% synergy
Flaming Tyrannosaurus
13% of 8778 decks +12% synergy
Skithiryx, the Blight Dragon
13% of 3300 decks +12% synergy
Jenny, Generated Anomaly
13% of 8778 decks +12% synergy
The Second Doctor
13% of 9732 decks +12% synergy
Phyrexian Swarmlord
13% of 3465 decks +12% synergy
Instants
Clockspinning
51% of 9739 decks +50% synergy
Gallifrey Falls // No More
48% of 8778 decks +48% synergy
Path to Exile
44% of 14259 decks +43% synergy
Run for Your Life
41% of 7442 decks +41% synergy
Everybody Lives!
38% of 14243 decks +38% synergy
Heroic Intervention
29% of 3465 decks +28% synergy
Counterspell
23% of 9739 decks +23% synergy
Atomize
22% of 1583 decks +21% synergy
Chaos Warp
22% of 8783 decks +21% synergy
Vraska's Fall
22% of 3300 decks +21% synergy
Fury Charm
21% of 8783 decks +21% synergy
Beast Within
20% of 3465 decks +19% synergy
Suspend
19% of 9739 decks +18% synergy
Generous Gift
18% of 14259 decks +18% synergy
Infectious Bite
18% of 3465 decks +18% synergy
Timecrafting
17% of 8783 decks +16% synergy
Anguished Unmaking
16% of 3300 decks +15% synergy
Reverse the Polarity
15% of 9731 decks +14% synergy
Assassin's Trophy
14% of 2139 decks +13% synergy
Growth Spiral
13% of 2714 decks +13% synergy
Brainstorm
13% of 9739 decks +13% synergy
Stroke of Midnight
12% of 14259 decks +12% synergy
Brokers Confluence
12% of 2714 decks +11% synergy
Mutational Advantage
10% of 2020 decks +10% synergy
Experimental Augury
10% of 9739 decks +10% synergy
Time Lord Regeneration
10% of 9738 decks +9% synergy
Dust of Moments
10% of 14259 decks +9% synergy
Despark
9% of 3300 decks +9% synergy
Delay
9% of 9739 decks +8% synergy
Tainted Strike
9% of 3300 decks +8% synergy
Boros Charm
8% of 8783 decks +8% synergy
Void Rend
8% of 2258 decks +8% synergy
Mortify
8% of 3300 decks +8% synergy
Prologue to Phyresis
8% of 9739 decks +8% synergy
Negate
7% of 9739 decks +7% synergy
Delayed Blast Fireball
7% of 8783 decks +7% synergy
Arcane Denial
7% of 9739 decks +7% synergy
Inspiring Call
7% of 3465 decks +6% synergy
An Offer You Can't Refuse
7% of 9739 decks +6% synergy
Revitalizing Repast
6% of 1314 decks +6% synergy
Whisper of the Dross
6% of 3300 decks +6% synergy
Flawless Maneuver
6% of 14259 decks +6% synergy
Putrefy
6% of 2139 decks +6% synergy
Dovin's Veto
6% of 9739 decks +5% synergy
Reprieve
6% of 14259 decks +5% synergy
Mana Drain
5% of 9739 decks +5% synergy
Ripples of Potential
5% of 8973 decks +5% synergy
Akroma's Will
5% of 14259 decks +5% synergy
Deflecting Swat
5% of 8783 decks +5% synergy
Sorceries
Farseek
45% of 3465 decks +45% synergy
Farewell
45% of 14259 decks +45% synergy
Rousing Refrain
45% of 8783 decks +44% synergy
The Wedding of River Song
41% of 14243 decks +40% synergy
Cultivate
41% of 3465 decks +40% synergy
Ancestral Vision
30% of 9739 decks +30% synergy
Coward // Killer
29% of 8778 decks +29% synergy
Inevitable Betrayal
28% of 9739 decks +27% synergy
Nanogene Conversion
28% of 9731 decks +27% synergy
Three Visits
27% of 3465 decks +27% synergy
Fractured Identity
25% of 9739 decks +25% synergy
Everything Comes to Dust
24% of 14243 decks +23% synergy
Infectious Inquiry
23% of 3300 decks +23% synergy
Nature's Lore
22% of 3465 decks +21% synergy
Chronomantic Escape
22% of 14259 decks +21% synergy
Wheel of Fate
21% of 8783 decks +21% synergy
Rampant Growth
21% of 3465 decks +20% synergy
Unnatural Restoration
21% of 3465 decks +20% synergy
Phyresis Outbreak
20% of 3300 decks +19% synergy
The Five Doctors
19% of 3447 decks +19% synergy
Drown in Ichor
19% of 3300 decks +18% synergy
Kodama's Reach
18% of 3465 decks +18% synergy
Reality Strobe
17% of 9739 decks +17% synergy
Twice Upon a Time
15% of 9731 decks +15% synergy
Blasphemous Act
15% of 8783 decks +14% synergy
Tezzeret's Gambit
13% of 9739 decks +13% synergy
Arc Blade
12% of 8783 decks +12% synergy
Thirsting Roots
12% of 3465 decks +12% synergy
Damn
11% of 3300 decks +11% synergy
Into the Time Vortex
10% of 8778 decks +10% synergy
Austere Command
10% of 14259 decks +10% synergy
Ruinous Ultimatum
10% of 791 decks +10% synergy
Expand the Sphere
9% of 3465 decks +9% synergy
Ponder
9% of 9739 decks +9% synergy
Toxic Deluge
9% of 3300 decks +8% synergy
Explore
8% of 3465 decks +8% synergy
Time Wipe
8% of 9739 decks +8% synergy
Eerie Ultimatum
8% of 2139 decks +7% synergy
Quantum Misalignment
8% of 9731 decks +7% synergy
Night's Whisper
8% of 3300 decks +7% synergy
Mana Geyser
8% of 8783 decks +7% synergy
Time Stretch
8% of 9739 decks +7% synergy
Contentious Plan
8% of 9739 decks +7% synergy
Search for Tomorrow
7% of 3465 decks +7% synergy
Cut a Deal
7% of 14259 decks +6% synergy
Harmonize
6% of 3465 decks +6% synergy
Secret Rendezvous
6% of 14259 decks +6% synergy
Ensnared by the Mara
6% of 8711 decks +5% synergy
Preordain
6% of 9739 decks +5% synergy
Last Night Together
5% of 1165 decks +5% synergy
Utility Artifacts
Lightning Greaves
48% of 14259 decks +48% synergy
Rotating Fireplace
44% of 14239 decks +44% synergy
TARDIS
32% of 14253 decks +32% synergy
The Moment
23% of 14243 decks +23% synergy
Psychic Paper
23% of 14239 decks +22% synergy
The Pandorica
21% of 14243 decks +21% synergy
Swiftfoot Boots
20% of 14259 decks +20% synergy
Wedding Ring
20% of 14259 decks +19% synergy
RMS Titanic
15% of 8778 decks +15% synergy
The Millennium Calendar
13% of 13528 decks +12% synergy
Wayfarer's Bauble
9% of 14259 decks +8% synergy
Pearl Medallion
9% of 14259 decks +8% synergy
River Song's Diary
8% of 14246 decks +7% synergy
Scroll Rack
7% of 14259 decks +7% synergy
Archaeomancer's Map
6% of 14259 decks +5% synergy
The Ozolith
5% of 14259 decks +5% synergy
Whispersilk Cloak
5% of 14259 decks +5% synergy
Ozolith, the Shattered Spire
5% of 3465 decks +5% synergy
Enchantments
Bigger on the Inside
38% of 1166 decks +38% synergy
Crack in Time
36% of 14243 decks +36% synergy
Out of Time
33% of 14259 decks +32% synergy
Grasp of Fate
32% of 14259 decks +32% synergy
Phyrexian Arena
31% of 3300 decks +30% synergy
The Eleventh Hour
29% of 9738 decks +29% synergy
The Girl in the Fireplace
27% of 14246 decks +27% synergy
The Day of the Doctor
26% of 8781 decks +25% synergy
Brokers Ascendancy
25% of 2714 decks +25% synergy
Training Grounds
18% of 9739 decks +17% synergy
Passionate Archaeologist
17% of 8783 decks +17% synergy
Doubling Season
14% of 3465 decks +13% synergy
Paradox Haze
13% of 9739 decks +13% synergy
Leyline of the Guildpact
13% of 385 decks +12% synergy
Annie Joins Up
12% of 896 decks +12% synergy
Propaganda
12% of 9739 decks +11% synergy
Innkeeper's Talent
11% of 2050 decks +11% synergy
Black Market Connections
11% of 3300 decks +10% synergy
Inexorable Tide
10% of 9739 decks +10% synergy
Ghostly Prison
10% of 14259 decks +9% synergy
Gallifrey Stands
9% of 9732 decks +9% synergy
City of Death
9% of 3465 decks +8% synergy
Hardened Scales
8% of 3465 decks +8% synergy
An Unearthly Child
8% of 9732 decks +8% synergy
Land Tax
8% of 14259 decks +7% synergy
Fugitive of the Judoon
7% of 3463 decks +7% synergy
The Flux
7% of 8783 decks +7% synergy
Dawn of a New Age
7% of 14259 decks +6% synergy
Darksteel Mutation
7% of 14259 decks +6% synergy
Captive Audience
7% of 791 decks +6% synergy
Wild Growth
7% of 3465 decks +6% synergy
Kaya's Ghostform
6% of 3300 decks +6% synergy
Enchantress's Presence
6% of 3465 decks +6% synergy
Necrogen Communion
6% of 3300 decks +6% synergy
The Eldest Reborn
6% of 3300 decks +6% synergy
Heaven Sent
6% of 7442 decks +6% synergy
Windcrag Siege
6% of 2647 decks +6% synergy
Simic Ascendancy
6% of 2714 decks +6% synergy
Shadow of the Second Sun
6% of 6392 decks +6% synergy
Sylvan Library
6% of 3465 decks +6% synergy
Mirari's Wake
6% of 3465 decks +5% synergy
Court of Garenbrig
6% of 3465 decks +5% synergy
Trouble in Pairs
6% of 11374 decks +5% synergy
Ripples of Undeath
5% of 2163 decks +5% synergy
Smuggler's Share
5% of 14259 decks +5% synergy
Utopia Sprawl
5% of 3465 decks +5% synergy
Binding the Old Gods
5% of 2139 decks +5% synergy
Disturbing Mirth
5% of 463 decks +5% synergy
Mystic Remora
5% of 9739 decks +5% synergy
Omniscience
5% of 9739 decks +5% synergy
Planeswalkers
Vraska, Betrayal's Sting
28% of 3300 decks +28% synergy
Tamiyo, Field Researcher
13% of 2714 decks +13% synergy
Ajani, Sleeper Agent
13% of 3465 decks +13% synergy
Quintorius Kand
9% of 8270 decks +9% synergy
Oko, Thief of Crowns
9% of 2714 decks +8% synergy
Wrenn and Realmbreaker
6% of 3465 decks +5% synergy
Ashiok, Dream Render
5% of 2258 decks +5% synergy
Ajani, the Greathearted
5% of 3465 decks +5% synergy
Tamiyo, Compleated Sage
5% of 2714 decks +5% synergy
Utility Lands
Rogue's Passage
47% of 14259 decks +46% synergy
War Room
28% of 14259 decks +28% synergy
Temple of the False God
26% of 14259 decks +26% synergy
Ominous Cemetery
24% of 14239 decks +24% synergy
Thespian's Stage
23% of 14259 decks +23% synergy
Reliquary Tower
23% of 14259 decks +22% synergy
Bojuka Bog
18% of 3300 decks +18% synergy
Karn's Bastion
14% of 14259 decks +13% synergy
Gavony Township
10% of 3465 decks +10% synergy
Dreadship Reef
9% of 2258 decks +9% synergy
Boseiju, Who Endures
8% of 3465 decks +7% synergy
Minas Tirith
7% of 14259 decks +7% synergy
Vault of the Archangel
7% of 3300 decks +6% synergy
Otawara, Soaring City
6% of 9739 decks +5% synergy
Nesting Grounds
5% of 14259 decks +5% synergy
Hall of Heliod's Generosity
5% of 14259 decks +5% synergy
Saltcrusted Steppe
5% of 3465 decks +5% synergy
Eiganjo, Seat of the Empire
5% of 14259 decks +5% synergy
Emeria, the Sky Ruin
5% of 14259 decks +5% synergy
Windbrisk Heights
5% of 14259 decks +5% synergy
Mana Artifacts
Sol Ring
86% of 14259 decks +86% synergy
Arcane Signet
82% of 14259 decks +82% synergy
Talisman of Creativity
67% of 7443 decks +67% synergy
Talisman of Conviction
64% of 8783 decks +63% synergy
Sonic Screwdriver
42% of 14243 decks +41% synergy
Mind Stone
36% of 14259 decks +35% synergy
Thought Vessel
35% of 14259 decks +35% synergy
Sol Talisman
24% of 14259 decks +24% synergy
Talisman of Progress
23% of 9739 decks +22% synergy
Orzhov Signet
19% of 3300 decks +19% synergy
Rakdos Signet
19% of 791 decks +18% synergy
Talisman of Impulse
18% of 1166 decks +18% synergy
Talisman of Indulgence
17% of 791 decks +17% synergy
Talisman of Hierarchy
17% of 3300 decks +16% synergy
Fellwar Stone
15% of 14259 decks +14% synergy
Mox Tantalite
14% of 14259 decks +14% synergy
Boros Signet
13% of 8783 decks +13% synergy
Hourglass of the Lost
13% of 9416 decks +12% synergy
Commander's Sphere
12% of 14259 decks +12% synergy
Talisman of Unity
12% of 3465 decks +11% synergy
Talisman of Curiosity
11% of 2714 decks +11% synergy
Everflowing Chalice
11% of 14259 decks +10% synergy
Lotus Bloom
11% of 14259 decks +10% synergy
Chromatic Lantern
10% of 14259 decks +10% synergy
Azorius Signet
10% of 9739 decks +9% synergy
Izzet Signet
9% of 7443 decks +9% synergy
Astral Cornucopia
9% of 14259 decks +8% synergy
Talisman of Dominance
8% of 2258 decks +8% synergy
Dimir Signet
8% of 2258 decks +7% synergy
Marble Diamond
5% of 14259 decks +5% synergy
Glistening Sphere
5% of 14259 decks +5% synergy
Replicating Ring
5% of 14259 decks +5% synergy
Lands
Command Tower
80% of 14259 decks +80% synergy
Stormcarved Coast
75% of 7443 decks +75% synergy
Mystic Monastery
74% of 7443 decks +74% synergy
Sundown Pass
68% of 8783 decks +67% synergy
Deserted Beach
62% of 9739 decks +62% synergy
Glacial Fortress
61% of 9739 decks +60% synergy
Exotic Orchard
59% of 14259 decks +59% synergy
Prairie Stream
58% of 9739 decks +57% synergy
Frostboil Snarl
54% of 7443 decks +54% synergy
Temple of Epiphany
53% of 7443 decks +53% synergy
Fiery Islet
53% of 7443 decks +53% synergy
Furycalm Snarl
51% of 8783 decks +51% synergy
Temple of Triumph
51% of 8783 decks +50% synergy
Path of Ancestry
49% of 14259 decks +49% synergy
Sunbaked Canyon
46% of 8783 decks +46% synergy
Skycloud Expanse
44% of 9739 decks +44% synergy
Port Town
44% of 9739 decks +44% synergy
Temple of Enlightenment
44% of 9739 decks +43% synergy
Seaside Citadel
42% of 2714 decks +41% synergy
Irrigated Farmland
38% of 9739 decks +37% synergy
Sandsteppe Citadel
37% of 2139 decks +37% synergy
Arcane Sanctum
37% of 2258 decks +36% synergy
Canopy Vista
37% of 3465 decks +36% synergy
Frontier Bivouac
36% of 947 decks +35% synergy
Myriad Landscape
35% of 14259 decks +35% synergy
Evolving Wilds
34% of 14259 decks +33% synergy
Opulent Palace
34% of 1946 decks +33% synergy
Rockfall Vale
34% of 1166 decks +33% synergy
Overgrown Tomb
33% of 2139 decks +33% synergy
Godless Shrine
33% of 3300 decks +33% synergy
Watery Grave
33% of 2258 decks +32% synergy
Zagoth Triome
33% of 1946 decks +32% synergy
Indatha Triome
32% of 2139 decks +32% synergy
Cinder Glade
32% of 1166 decks +31% synergy
Spara's Headquarters
31% of 2714 decks +31% synergy
Breeding Pool
31% of 2714 decks +30% synergy
Temple Garden
30% of 3465 decks +30% synergy
Raffine's Tower
30% of 2258 decks +29% synergy
Nomad Outpost
29% of 791 decks +29% synergy
Thriving Bluff
29% of 8783 decks +29% synergy
Hallowed Fountain
28% of 9739 decks +28% synergy
Raugrin Triome
28% of 7443 decks +27% synergy
Dreamroot Cascade
27% of 2714 decks +27% synergy
Steam Vents
25% of 7443 decks +25% synergy
Sacred Foundry
25% of 8783 decks +24% synergy
Caves of Koilos
25% of 3300 decks +24% synergy
Overgrown Farmland
25% of 3465 decks +24% synergy
The World Tree
24% of 461 decks +23% synergy
Spectator Seating
23% of 8783 decks +23% synergy
Training Center
23% of 7443 decks +22% synergy