Shay Cormac + Agatha's Soul Cauldron + Walking Ballista

Shay Cormac
Agatha's Soul Cauldron
Walking Ballista

Requires
Shay Cormac must be on the battlefield. Agatha's Soul Cauldron must be on the battlefield. Walking Ballista must be in exile (exiled by Agatha's Soul Cauldron). Shay Cormac has at least one +1/+1 counter on it. You have a way to give Shay Cormac deathtouch.
Steps
  1. Give Shay Cormac deathtouch, if needed.
  2. Activate Shay Cormac using Walking Ballista's second ability by removing a +1/+1 counter from it, targeting a creature an opponent controls.
  3. Shay Cormac's first ability triggers, putting a bounty counter on the targeted creature.
  4. Resolve the Shay Cormac ability from step 2, dealing 1 damage to the creature and killing it due to Shay Cormac's deathtouch.
  5. When the creature dies, Shay Cormac's second ability triggers, putting two +1/+1 counters on it.
  6. Repeat from step 2.
  7. If the method giving Shay Cormac deathtouch lasts indefinitely, you may repeat this loop whenever a creature enters the battlefield under an opponent's control.
Results
Destroy all creatures that enter the battlefield under an opponent's control. Destroy all creatures opponents control.

Shay Cormac
0.71% of 562 decks 4 decks
Breena, the Demagogue
0.02% of 4123 decks 1 decks
Francisco, Fowl Marauder // Ishai, Ojutai Dragonspeaker
0.52% of 193 decks 1 decks
Francisco, Fowl Marauder // Yoshimaru, Ever Faithful
1.72% of 58 decks 1 decks
Amalia Benavides Aguirre
0.03% of 3246 decks 1 decks
Reyhan, Last of the Abzan // Yoshimaru, Ever Faithful
0.06% of 1730 decks 1 decks
Lotho, Corrupt Shirriff
0.09% of 1153 decks 1 decks
New Cards
Crystal Barricade
100% of 1 decks +95% synergy
Helpful Hunter
100% of 1 decks +98% synergy
Marvin, Murderous Mimic
100% of 1 decks +95% synergy
Raise the Past
100% of 1 decks +85% synergy
High Synergy Cards
Blind Obedience
70% of 10 decks +63% synergy
Grand Abolisher
70% of 10 decks +61% synergy
Silence
60% of 10 decks +54% synergy
Esper Sentinel
70% of 10 decks +49% synergy
Lotho, Corrupt Shirriff
60% of 10 decks +45% synergy
Reanimate
60% of 10 decks +44% synergy
Mithril Coat
50% of 10 decks +44% synergy
Drannith Magistrate
50% of 10 decks +43% synergy
Cauldron Haze
40% of 10 decks +40% synergy
Termination Facilitator
40% of 10 decks +40% synergy
Top Cards
Swords to Plowshares
70% of 10 decks +7% synergy
Dark Ritual
60% of 10 decks +38% synergy
Path to Exile
60% of 10 decks +15% synergy
Lotus Petal
50% of 10 decks +43% synergy
Swiftfoot Boots
50% of 10 decks +22% synergy
Retribution of the Ancients
40% of 10 decks +39% synergy
Orim's Chant
40% of 10 decks +39% synergy
Fateful Absence
40% of 10 decks +39% synergy
Imp's Mischief
40% of 10 decks +37% synergy
The Ozolith
40% of 10 decks +37% synergy
Creatures
Doric, Nature's Warden
100% of 1 decks +100% synergy
Esior, Wardwing Familiar
100% of 1 decks +99% synergy
Ghave, Guru of Spores
100% of 1 decks +99% synergy
Cleopatra, Exiled Pharaoh
100% of 1 decks +99% synergy
Reki, the History of Kamigawa
100% of 1 decks +99% synergy
Malcolm, Keen-Eyed Navigator
100% of 1 decks +99% synergy
Kastral, the Windcrested
100% of 1 decks +99% synergy
Armorcraft Judge
100% of 1 decks +99% synergy
Benevolent Hydra
100% of 1 decks +98% synergy
Kitesail Larcenist
100% of 1 decks +98% synergy
Tivit, Seller of Secrets
100% of 1 decks +98% synergy
Hamza, Guardian of Arashin
100% of 1 decks +98% synergy
Kethis, the Hidden Hand
100% of 1 decks +97% synergy
Vigor
100% of 1 decks +97% synergy
Arwen, Weaver of Hope
100% of 1 decks +97% synergy
Lavinia, Azorius Renegade
100% of 1 decks +97% synergy
Siren Stormtamer
100% of 1 decks +97% synergy
Grand Arbiter Augustin IV
100% of 1 decks +96% synergy
Vorinclex, Monstrous Raider
100% of 1 decks +96% synergy
Volatile Stormdrake
100% of 1 decks +96% synergy
Kodama of the West Tree
100% of 1 decks +96% synergy
Laboratory Maniac
100% of 1 decks +95% synergy
Evolution Witness
100% of 1 decks +95% synergy
Thalia and The Gitrog Monster
100% of 1 decks +95% synergy
Samwise Gamgee
100% of 1 decks +95% synergy
Valley Floodcaller
100% of 1 decks +94% synergy
Phyrexian Metamorph
100% of 1 decks +93% synergy
Evolution Sage
100% of 1 decks +93% synergy
Shalai, Voice of Plenty
100% of 1 decks +93% synergy
Mockingbird
100% of 1 decks +92% synergy
Kami of Whispered Hopes
100% of 1 decks +92% synergy
Honest Rutstein
100% of 1 decks +91% synergy
Baleful Strix
100% of 1 decks +87% synergy
Delighted Halfling
100% of 1 decks +86% synergy
Birds of Paradise
100% of 1 decks +73% synergy
Archivist of Oghma
40% of 10 decks +34% synergy
Dauthi Voidwalker
40% of 10 decks +32% synergy
Orcish Bowmasters
40% of 10 decks +29% synergy
Tetzimoc, Primal Death
30% of 10 decks +30% synergy
Doorkeeper Thrull
30% of 10 decks +29% synergy
Mari, the Killing Quill
30% of 10 decks +29% synergy
Lion Sash
30% of 10 decks +27% synergy
Heliod, Sun-Crowned
30% of 10 decks +27% synergy
Dauntless Dismantler
30% of 10 decks +26% synergy
Teysa Karlov
30% of 10 decks +25% synergy
Boromir, Warden of the Tower
30% of 10 decks +24% synergy
Emperor of Bones
25% of 8 decks +24% synergy
Loxodon Gatekeeper
20% of 10 decks +20% synergy
Hex Parasite
20% of 10 decks +19% synergy
Giant Killer
20% of 10 decks +19% synergy
Instants
Force of Vigor
100% of 1 decks +97% synergy
Borne Upon a Wind
100% of 1 decks +97% synergy
Dispel
100% of 1 decks +95% synergy
Atomize
100% of 1 decks +94% synergy
Strix Serenade
100% of 1 decks +93% synergy
Flusterstorm
100% of 1 decks +93% synergy
Void Rend
100% of 1 decks +85% synergy
An Offer You Can't Refuse
100% of 1 decks +79% synergy
Counterspell
100% of 1 decks +57% synergy
Reprieve
40% of 10 decks +35% synergy
Entomb
40% of 10 decks +33% synergy
Mortify
40% of 10 decks +28% synergy
Enlightened Tutor
40% of 10 decks +22% synergy
Vampiric Tutor
40% of 10 decks +22% synergy
Generous Gift
40% of 10 decks +14% synergy
Flare of Fortitude
38% of 8 decks +31% synergy
V.A.T.S.
30% of 10 decks +29% synergy
Angel's Grace
30% of 10 decks +28% synergy
Tragic Slip
30% of 10 decks +26% synergy
Culling the Weak
30% of 10 decks +26% synergy
Cabal Ritual
30% of 10 decks +25% synergy
Infernal Grasp
30% of 10 decks +22% synergy
Stroke of Midnight
30% of 10 decks +18% synergy
Teferi's Protection
30% of 10 decks +10% synergy
Touch of Darkness
20% of 10 decks +20% synergy
Long Goodbye
20% of 10 decks +20% synergy
Fatal Push
20% of 10 decks +19% synergy
Lethal Scheme
20% of 10 decks +19% synergy
Snuff Out
20% of 10 decks +18% synergy
Ad Nauseam
20% of 10 decks +17% synergy
Demonic Consultation
20% of 10 decks +16% synergy
Fracture
20% of 10 decks +13% synergy
Akroma's Will
20% of 10 decks +10% synergy
Deadly Rollick
20% of 10 decks +9% synergy
Breathe Your Last
12% of 8 decks +11% synergy
Chain Assassination
12% of 8 decks +11% synergy
Abstruse Appropriation
12% of 8 decks +9% synergy
Flare of Malice
12% of 8 decks +9% synergy
Hallowed Moonlight
10% of 10 decks +10% synergy
Afterlife
10% of 10 decks +10% synergy
Mandate of Peace
10% of 10 decks +10% synergy
Pull from Eternity
10% of 10 decks +10% synergy
Power Word Kill
10% of 10 decks +10% synergy
Calamity's Wake
10% of 10 decks +9% synergy
Cast Down
10% of 10 decks +9% synergy
Mausoleum Secrets
10% of 10 decks +9% synergy
Oblation
10% of 10 decks +9% synergy
Curtains' Call
10% of 10 decks +9% synergy
Valorous Stance
10% of 10 decks +9% synergy
Mana Tithe
10% of 10 decks +8% synergy
Sorceries
Eerie Ultimatum
100% of 1 decks +87% synergy
Approach of the Second Sun
40% of 10 decks +36% synergy
Sevinne's Reclamation
40% of 10 decks +33% synergy
Demonic Tutor
40% of 10 decks +18% synergy
Fell
33% of 3 decks +30% synergy
Unearth
30% of 10 decks +27% synergy
Imperial Seal
30% of 10 decks +24% synergy
Damn
30% of 10 decks +13% synergy
Helping Hand
20% of 10 decks +19% synergy
Divine Reckoning
20% of 10 decks +18% synergy
Final Parting
20% of 10 decks +18% synergy
Single Combat
20% of 10 decks +18% synergy
Unmarked Grave
20% of 10 decks +17% synergy
Debt to the Deathless
20% of 10 decks +17% synergy
Beseech the Mirror
20% of 10 decks +16% synergy
Diabolic Intent
20% of 10 decks +11% synergy
Final Act
12% of 8 decks +11% synergy
Jolted Awake
12% of 8 decks +11% synergy
Asphyxiate
10% of 10 decks +10% synergy
Sickening Dreams
10% of 10 decks +10% synergy
Hex
10% of 10 decks +9% synergy
Revival // Revenge
10% of 10 decks +9% synergy
Day of Judgment
10% of 10 decks +8% synergy
Scheming Symmetry
10% of 10 decks +8% synergy
Praetor's Grasp
10% of 10 decks +8% synergy
Secret Rendezvous
10% of 10 decks +8% synergy
Profane Tutor
10% of 10 decks +7% synergy
Urza's Ruinous Blast
10% of 10 decks +7% synergy
Agadeem's Awakening
10% of 10 decks +6% synergy
Torment of Hailfire
10% of 10 decks +5% synergy
Open the Armory
10% of 10 decks +5% synergy
Vindicate
10% of 10 decks +3% synergy
Damnation
10% of 10 decks +2% synergy
Austere Command
10% of 10 decks -3% synergy
Farewell
10% of 10 decks -3% synergy
Toxic Deluge
10% of 10 decks -7% synergy
Feed the Swarm
10% of 10 decks -8% synergy
Utility Artifacts
Time Sieve
100% of 1 decks +97% synergy
Ozolith, the Shattered Spire
100% of 1 decks +94% synergy
The Great Henge
100% of 1 decks +90% synergy
Basilisk Collar
30% of 10 decks +27% synergy
Wishclaw Talisman
30% of 10 decks +25% synergy
Wayfarer's Bauble
30% of 10 decks +20% synergy
Skullclamp
30% of 10 decks +18% synergy
Lightning Greaves
30% of 10 decks +5% synergy
Phantom Blade
25% of 4 decks +24% synergy
Vexing Bauble
25% of 8 decks +23% synergy
Brotherhood Regalia
25% of 4 decks +20% synergy
Damping Sphere
20% of 10 decks +20% synergy
Cauldron of Souls
20% of 10 decks +19% synergy
Blade of the Bloodchief
20% of 10 decks +19% synergy
Tarrian's Soulcleaver
20% of 10 decks +18% synergy
Lavaspur Boots
20% of 10 decks +18% synergy
Isochron Scepter
20% of 10 decks +18% synergy
Sensei's Divining Top
20% of 10 decks +14% synergy
Lost Jitte
12% of 8 decks +12% synergy
Profane Memento
10% of 10 decks +10% synergy
Dino DNA
10% of 10 decks +10% synergy
Portable Hole
10% of 10 decks +10% synergy
Urza's Bauble
10% of 10 decks +10% synergy
Umezawa's Jitte
10% of 10 decks +9% synergy
Quietus Spike
10% of 10 decks +9% synergy
Dowsing Dagger
10% of 10 decks +9% synergy
Defense Grid
10% of 10 decks +9% synergy
Krark-Clan Ironworks
10% of 10 decks +9% synergy
Mishra's Bauble
10% of 10 decks +9% synergy
Haystack
10% of 10 decks +9% synergy
Vorpal Sword
10% of 10 decks +8% synergy
Whispersilk Cloak
10% of 10 decks +6% synergy
Aetherflux Reservoir
10% of 10 decks +6% synergy
Blackblade Reforged
10% of 10 decks +6% synergy
The One Ring
10% of 10 decks +1% synergy
Bolas's Citadel
10% of 10 decks +1% synergy
Enchantments
Master Chef
100% of 1 decks +98% synergy
Dress Down
100% of 1 decks +98% synergy
Curiosity
100% of 1 decks +96% synergy
Communal Brewing
100% of 1 decks +96% synergy
Wizard Class
100% of 1 decks +96% synergy
Reconnaissance Mission
100% of 1 decks +95% synergy
Vraska Joins Up
100% of 1 decks +94% synergy
Authority of the Consuls
40% of 10 decks +36% synergy
Dance of the Dead
30% of 10 decks +28% synergy
Animate Dead
30% of 10 decks +21% synergy
Ripples of Undeath
25% of 8 decks +18% synergy
Karmic Justice
20% of 10 decks +19% synergy
No Mercy
20% of 10 decks +18% synergy
Dictate of Erebos
20% of 10 decks +16% synergy
Black Market Connections
20% of 10 decks +9% synergy
Smothering Tithe
20% of 10 decks -5% synergy
Necrodominance
12% of 8 decks +11% synergy
Chthonian Nightmare
12% of 8 decks +9% synergy
Fevered Convulsions
10% of 10 decks +10% synergy
Arguel's Blood Fast
10% of 10 decks +10% synergy
Felidar Umbra
10% of 10 decks +9% synergy
Rune of Sustenance
10% of 10 decks +9% synergy
Agent of the Shadow Thieves
10% of 10 decks +9% synergy
Gift of Doom
10% of 10 decks +9% synergy
Out of Time
10% of 10 decks +9% synergy
Oubliette
10% of 10 decks +9% synergy
Noble Heritage
10% of 10 decks +9% synergy
Resourceful Defense
10% of 10 decks +9% synergy
War of the Last Alliance
10% of 10 decks +8% synergy
Luminarch Ascension
10% of 10 decks +8% synergy
True Conviction
10% of 10 decks +7% synergy
Necromancy
10% of 10 decks +7% synergy
Revel in Riches
10% of 10 decks +7% synergy
The Meathook Massacre
10% of 10 decks +5% synergy
Necropotence
10% of 10 decks +5% synergy
Flowering of the White Tree
10% of 10 decks +4% synergy
Land Tax
10% of 10 decks +3% synergy
Trouble in Pairs
10% of 10 decks +3% synergy
Planeswalkers
Kaito Shizuki
100% of 1 decks +98% synergy
Teferi, Time Raveler
100% of 1 decks +93% synergy
Utility Lands
Yavimaya Hollow
100% of 1 decks +99% synergy
Cephalid Coliseum
100% of 1 decks +97% synergy
The Shire
100% of 1 decks +96% synergy
Gavony Township
100% of 1 decks +90% synergy
Boseiju, Who Endures
100% of 1 decks +80% synergy
Rogue's Passage
50% of 10 decks +31% synergy
Shizo, Death's Storehouse
40% of 10 decks +35% synergy
Eiganjo, Seat of the Empire
40% of 10 decks +31% synergy
Kor Haven
30% of 10 decks +29% synergy
Tyrite Sanctum
30% of 10 decks +28% synergy
Urza's Saga
30% of 10 decks +23% synergy
Urborg, Tomb of Yawgmoth
30% of 10 decks +20% synergy
Eiganjo Castle
20% of 10 decks +19% synergy
Maze of Ith
20% of 10 decks +17% synergy
Castle Locthwain
20% of 10 decks +15% synergy
Ancient Tomb
20% of 10 decks +9% synergy
Takenuma, Abandoned Mire
20% of 10 decks +9% synergy
Cabal Coffers
20% of 10 decks +9% synergy
Bojuka Bog
20% of 10 decks -10% synergy
Fomori Vault
12% of 8 decks +11% synergy
Spymaster's Vault
12% of 8 decks +8% synergy
Mishra's Workshop
10% of 10 decks +10% synergy
Cabal Pit
10% of 10 decks +9% synergy
City of Traitors
10% of 10 decks +9% synergy
Witch's Clinic
10% of 10 decks +9% synergy
Volrath's Stronghold
10% of 10 decks +9% synergy
Mikokoro, Center of the Sea
10% of 10 decks +8% synergy
Minas Morgul, Dark Fortress
10% of 10 decks +8% synergy
Emergence Zone
10% of 10 decks +8% synergy
Ghost Quarter
10% of 10 decks +8% synergy
Treasure Vault
10% of 10 decks +7% synergy
Barad-dûr
10% of 10 decks +7% synergy
Inventors' Fair
10% of 10 decks +6% synergy
The Black Gate
10% of 10 decks +6% synergy
Vault of Whispers
10% of 10 decks +6% synergy
Karn's Bastion
10% of 10 decks +5% synergy
War Room
10% of 10 decks +4% synergy
Phyrexian Tower
10% of 10 decks +2% synergy
Minas Tirith
10% of 10 decks +1% synergy
Yavimaya, Cradle of Growth
10% of 10 decks +1% synergy
Vault of the Archangel
10% of 10 decks -1% synergy
Reliquary Tower
10% of 10 decks -19% synergy
Mana Artifacts
Talisman of Progress
100% of 1 decks +77% synergy
Talisman of Dominance
100% of 1 decks +69% synergy
Arcane Signet
90% of 10 decks +18% synergy
Sol Ring
90% of 10 decks +6% synergy
Talisman of Hierarchy
60% of 10 decks +35% synergy
Mox Amber
40% of 10 decks +36% synergy
Mind Stone
40% of 10 decks +23% synergy
Mox Opal
30% of 10 decks +26% synergy
Chrome Mox
30% of 10 decks +24% synergy
Fellwar Stone
30% of 10 decks +9% synergy
Bandit's Haul
20% of 10 decks +19% synergy
Springleaf Drum
20% of 10 decks +18% synergy
Mox Diamond
20% of 10 decks +16% synergy
Jeweled Lotus
20% of 10 decks +14% synergy
Mana Vault
20% of 10 decks +14% synergy
Orzhov Signet
20% of 10 decks -7% synergy
Bounty Board
12% of 8 decks +12% synergy
Grim Monolith
10% of 10 decks +8% synergy
Relic of Legends
10% of 10 decks +8% synergy
Liquimetal Torque
10% of 10 decks +6% synergy
Mana Crypt
10% of 10 decks +1% synergy
Chromatic Lantern
10% of 10 decks +0% synergy
Lands
Adarkar Wastes
100% of 1 decks +83% synergy
Underground River
100% of 1 decks +81% synergy
Bountiful Promenade
100% of 1 decks +76% synergy
Morphic Pool
100% of 1 decks +74% synergy
Undergrowth Stadium
100% of 1 decks +74% synergy
Indatha Triome
100% of 1 decks +69% synergy
Temple Garden
100% of 1 decks +59% synergy
Hallowed Fountain
100% of 1 decks +59% synergy
Overgrown Tomb
100% of 1 decks +57% synergy
Command Tower
100% of 10 decks +26% synergy
Caves of Koilos
70% of 10 decks +42% synergy
Godless Shrine
70% of 10 decks +29% synergy
Shadowy Backstreet
60% of 10 decks +47% synergy
Vault of Champions
60% of 10 decks +34% synergy
Isolated Chapel
60% of 10 decks +33% synergy
Exotic Orchard
50% of 10 decks +14% synergy
Marsh Flats
40% of 10 decks +29% synergy
Scrubland
40% of 10 decks +26% synergy
Plaza of Heroes
30% of 10 decks +27% synergy
Silent Clearing
30% of 10 decks +25% synergy
Gemstone Caverns
30% of 10 decks +25% synergy
City of Brass
30% of 10 decks +22% synergy
Arid Mesa
30% of 10 decks +19% synergy
Verdant Catacombs
30% of 10 decks +19% synergy
Mana Confluence
20% of 10 decks +13% synergy
Bloodstained Mire
20% of 10 decks +10% synergy
Polluted Delta
20% of 10 decks +9% synergy
Tainted Field
20% of 10 decks +7% synergy
Abstergo Entertainment
12% of 8 decks +11% synergy
Urza's Cave
12% of 8 decks +8% synergy
Study Hall
10% of 10 decks +10% synergy
Gemstone Mine
10% of 10 decks +9% synergy
Flagstones of Trokair
10% of 10 decks +8% synergy
The Grey Havens
10% of 10 decks +8% synergy
Opal Palace
10% of 10 decks +7% synergy
Forbidden Orchard
10% of 10 decks +7% synergy
Spire of Industry
10% of 10 decks +7% synergy
Demolition Field
10% of 10 decks +7% synergy
Snowfield Sinkhole
10% of 10 decks +7% synergy
Ash Barrens
10% of 10 decks +5% synergy
Cavern of Souls
10% of 10 decks +3% synergy
Scoured Barrens
10% of 10 decks +1% synergy
Brightclimb Pathway
10% of 10 decks -0% synergy
Windswept Heath
10% of 10 decks -0% synergy
Flooded Strand
10% of 10 decks -1% synergy
Shineshadow Snarl
10% of 10 decks -2% synergy
Orzhov Basilica
10% of 10 decks -6% synergy
Temple of Silence
10% of 10 decks -8% synergy
Path of Ancestry
10% of 10 decks -11% synergy