Yahenni, Undying Partisan + Agatha's Soul Cauldron + Walking Ballista

Yahenni, Undying Partisan
Agatha's Soul Cauldron
Walking Ballista

Requires
Yahenni, Undying Partisan 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). Yahenni has at least one +1/+1 counter on it. You have a way to give Yahenni deathtouch.
Steps
  1. Give Yahenni deathtouch, if needed.
  2. Activate Yahenni using Walking Ballista's second ability by removing a +1/+1 counter from it, dealing 1 damage to a creature an opponent controls, and destroying it due to Yahenni's deathtouch.
  3. Yahenni triggers, putting a +1/+1 counter on it.
  4. Repeat from step 2 as desired.
  5. If you can give Yahenni deathtouch indefinitely, you may repeat this loop whenever a creature enters the battlefield under an opponent's control.
Results
Destroy all creatures opponents control. Destroy any creature that enters the battlefield under an opponent's control.

Reyhan, Last of the Abzan // Sakashima of a Thousand Faces
3.47% of 259 decks 9 decks
Reyhan, Last of the Abzan // Yoshimaru, Ever Faithful
0.61% of 1648 decks 10 decks
Marchesa, the Black Rose
0.11% of 9078 decks 10 decks
New Cards
Innkeeper's Talent
60% of 5 decks +54% synergy
High Synergy Cards
Hardened Scales
73% of 51 decks +68% synergy
The Ozolith
64% of 83 decks +60% synergy
Master Biomancer
58% of 24 decks +57% synergy
The Great Henge
61% of 51 decks +56% synergy
Brokers Ascendancy
56% of 9 decks +55% synergy
Conclave Mentor
54% of 24 decks +53% synergy
Bristly Bill, Spine Sower
55% of 22 decks +52% synergy
Kami of Whispered Hopes
55% of 51 decks +51% synergy
Goblin Bombardment
53% of 19 decks +49% synergy
Branching Evolution
51% of 51 decks +49% synergy
Top Cards
Swords to Plowshares
69% of 36 decks +41% synergy
Heliod, Sun-Crowned
50% of 36 decks +48% synergy
Blasphemous Act
47% of 19 decks +31% synergy
Herald of Secret Streams
47% of 34 decks +46% synergy
Ozolith, the Shattered Spire
47% of 51 decks +44% synergy
Evolution Witness
47% of 15 decks +44% synergy
Revitalizing Repast
46% of 13 decks +43% synergy
Rishkar, Peema Renegade
45% of 51 decks +43% synergy
Forgotten Ancient
45% of 51 decks +42% synergy
Assassin's Trophy
45% of 51 decks +39% synergy
Creatures
Corpsejack Menace
43% of 51 decks +42% synergy
Kodama of the West Tree
43% of 51 decks +41% synergy
Kutzil, Malamet Exemplar
42% of 19 decks +37% synergy
Dockside Extortionist
42% of 19 decks +34% synergy
Fathom Mage
42% of 24 decks +41% synergy
Yawgmoth, Thran Physician
41% of 83 decks +39% synergy
Bartolomé del Presidio
41% of 32 decks +39% synergy
Carrion Feeder
40% of 83 decks +37% synergy
Birds of Paradise
39% of 51 decks +27% synergy
Elenda, the Dusk Rose
39% of 36 decks +38% synergy
Lae'zel, Vlaakith's Champion
39% of 36 decks +37% synergy
Esper Sentinel
39% of 36 decks +29% synergy
Thundering Raiju
37% of 19 decks +36% synergy
Gyre Sage
35% of 51 decks +33% synergy
Falco Spara, Pactweaver
33% of 9 decks +33% synergy
Felisa, Fang of Silverquill
33% of 36 decks +33% synergy
Mikaeus, the Lunarch
33% of 36 decks +32% synergy
Arwen, Weaver of Hope
33% of 51 decks +32% synergy
Managorger Hydra
33% of 51 decks +31% synergy
Incubation Druid
33% of 51 decks +31% synergy
Glen Elendra Archmage
32% of 34 decks +31% synergy
Spark Double
32% of 34 decks +29% synergy
Flayer of the Hatebound
32% of 19 decks +31% synergy
Danny Pink
31% of 26 decks +30% synergy
Winding Constrictor
29% of 51 decks +29% synergy
Delighted Halfling
29% of 51 decks +23% synergy
Basking Broodscale
27% of 15 decks +25% synergy
Toothy, Imaginary Friend
26% of 34 decks +26% synergy
Imperial Recruiter
26% of 19 decks +23% synergy
Ragavan, Nimble Pilferer
26% of 19 decks +23% synergy
Vorinclex, Monstrous Raider
25% of 51 decks +24% synergy
Champion of Lambholt
25% of 51 decks +22% synergy
Hangarback Walker
25% of 83 decks +24% synergy
Dack's Duplicate
25% of 12 decks +25% synergy
Elas il-Kor, Sadistic Pilgrim
25% of 36 decks +22% synergy
Viscera Seer
24% of 83 decks +19% synergy
Chasm Skulker
24% of 34 decks +22% synergy
Satoru, the Infiltrator
23% of 13 decks +22% synergy
Orcish Bowmasters
23% of 83 decks +17% synergy
Benevolent Hydra
22% of 51 decks +21% synergy
Biophagus
22% of 51 decks +21% synergy
Kalonian Hydra
22% of 51 decks +20% synergy
Devoted Druid
22% of 51 decks +20% synergy
Warren Soultrader
21% of 19 decks +17% synergy
Ghave, Guru of Spores
21% of 24 decks +21% synergy
Faeburrow Elder
21% of 24 decks +18% synergy
Sage of Hours
21% of 34 decks +20% synergy
Drana, Liberator of Malakir
20% of 83 decks +19% synergy
Mikaeus, the Unhallowed
20% of 83 decks +19% synergy
Disciple of Freyalise
20% of 15 decks +16% synergy
Instants
Chaos Warp
37% of 19 decks +21% synergy
Inspiring Call
35% of 51 decks +32% synergy
Anguished Unmaking
33% of 36 decks +28% synergy
Counterspell
32% of 34 decks +11% synergy
Path to Exile
31% of 36 decks +10% synergy
Vampiric Tutor
30% of 83 decks +21% synergy
Cyclonic Rift
29% of 34 decks +15% synergy
Heroic Intervention
27% of 51 decks +14% synergy
Ripples of Potential
26% of 23 decks +24% synergy
Swan Song
24% of 34 decks +15% synergy
Fierce Guardianship
24% of 34 decks +15% synergy
An Offer You Can't Refuse
24% of 34 decks +14% synergy
Beast Within
24% of 51 decks +5% synergy
Enlightened Tutor
22% of 36 decks +14% synergy
Fell the Profane
21% of 19 decks +14% synergy
Deflecting Swat
21% of 19 decks +13% synergy
Abzan Charm
21% of 24 decks +20% synergy
Arcane Denial
21% of 34 decks +11% synergy
Negate
21% of 34 decks +9% synergy
Dark Ritual
20% of 83 decks +9% synergy
Despark
19% of 36 decks +16% synergy
Teferi's Protection
19% of 36 decks +10% synergy
Get Lost
19% of 32 decks +17% synergy
Malakir Rebirth
18% of 83 decks +14% synergy
Bioshift
17% of 24 decks +17% synergy
Flawless Maneuver
17% of 36 decks +12% synergy
Tibalt's Trickery
16% of 19 decks +13% synergy
Deadly Rollick
16% of 83 decks +10% synergy
Slip Out the Back
15% of 34 decks +13% synergy
Archdruid's Charm
14% of 28 decks +10% synergy
Inkshield
14% of 36 decks +13% synergy
Worldly Tutor
14% of 51 decks +7% synergy
Entomb
13% of 83 decks +10% synergy
Growth Spiral
12% of 24 decks +8% synergy
Tear Asunder
12% of 51 decks +10% synergy
Abrupt Decay
12% of 51 decks +9% synergy
Veil of Summer
12% of 51 decks +9% synergy
Mana Drain
12% of 34 decks +4% synergy
Atomize
12% of 26 decks +10% synergy
Reprieve
11% of 36 decks +9% synergy
Stroke of Midnight
11% of 36 decks +5% synergy
Chord of Calling
10% of 51 decks +7% synergy
Nature's Claim
10% of 51 decks +5% synergy
Brainstorm
9% of 34 decks -2% synergy
Saw in Half
8% of 83 decks +7% synergy
Fracture
8% of 36 decks +7% synergy
Unbreakable Formation
8% of 36 decks +5% synergy
Generous Gift
8% of 36 decks -4% synergy
Solidarity of Heroes
8% of 51 decks +7% synergy
Silkguard
8% of 51 decks +7% synergy
Sorceries
Neoform
38% of 24 decks +36% synergy
Demonic Tutor
34% of 83 decks +22% synergy
Three Visits
33% of 51 decks +22% synergy
Farseek
31% of 51 decks +15% synergy
Toxic Deluge
30% of 83 decks +21% synergy
Reanimate
29% of 83 decks +21% synergy
Nature's Lore
27% of 51 decks +12% synergy
Damn
25% of 36 decks +21% synergy
Damning Verdict
22% of 36 decks +21% synergy
Wave Goodbye
22% of 23 decks +20% synergy
Bala Ged Recovery
22% of 51 decks +17% synergy
Vandalblast
21% of 19 decks +13% synergy
Faithless Looting
21% of 19 decks +13% synergy
Diabolic Intent
18% of 83 decks +14% synergy
Sevinne's Reclamation
17% of 36 decks +13% synergy
Jeska's Will
16% of 19 decks +7% synergy
Cultivate
16% of 51 decks -6% synergy
Eldritch Evolution
14% of 51 decks +12% synergy
Culling Ritual
14% of 51 decks +11% synergy
Victimize
13% of 83 decks +7% synergy
Life's Legacy
12% of 51 decks +11% synergy
Green Sun's Zenith
12% of 51 decks +9% synergy
Flare of Cultivation
12% of 26 decks +10% synergy
Urza's Ruinous Blast
11% of 36 decks +10% synergy
Finale of Devastation
10% of 51 decks +6% synergy
Agadeem's Awakening
10% of 83 decks +8% synergy
Feed the Swarm
10% of 83 decks +0% synergy
Rite of Replication
9% of 34 decks +7% synergy
Fabricate
9% of 34 decks +6% synergy
Damnation
8% of 83 decks +4% synergy
Primevals' Glorious Rebirth
8% of 36 decks +7% synergy
Merciless Eviction
8% of 36 decks +7% synergy
Turntimber Symbiosis
8% of 51 decks +7% synergy
Rishkar's Expertise
8% of 51 decks +3% synergy
Kodama's Reach
8% of 51 decks -7% synergy
Rampant Growth
8% of 51 decks -8% synergy
Black Sun's Zenith
7% of 83 decks +6% synergy
Imperial Seal
7% of 83 decks +4% synergy
Scheming Symmetry
6% of 83 decks +5% synergy
Beseech the Mirror
6% of 83 decks +4% synergy
Buried Alive
6% of 83 decks +3% synergy
Living Death
6% of 83 decks +3% synergy
Find // Finality
6% of 51 decks +6% synergy
Unnatural Restoration
6% of 51 decks +4% synergy
Skyshroud Claim
6% of 51 decks +1% synergy
Utility Artifacts
Ashnod's Altar
33% of 83 decks +25% synergy
Phyrexian Altar
30% of 83 decks +26% synergy
Skullclamp
29% of 83 decks +16% synergy
Birthing Pod
20% of 51 decks +18% synergy
Lightning Greaves
17% of 83 decks -9% synergy
Altar of Dementia
16% of 83 decks +13% synergy
Tarrian's Soulcleaver
15% of 67 decks +13% synergy
Swiftfoot Boots
14% of 83 decks -14% synergy
Blade of the Bloodchief
13% of 83 decks +13% synergy
Sword of Truth and Justice
12% of 83 decks +11% synergy
Power Fist
12% of 26 decks +10% synergy
Shadowspear
11% of 83 decks +7% synergy
The One Ring
11% of 83 decks +2% synergy
Andúril, Narsil Reforged
10% of 71 decks +9% synergy
Animation Module
8% of 83 decks +8% synergy
Bow of Nylea
8% of 51 decks +7% synergy
Blade of Selves
6% of 83 decks +5% synergy
Sensei's Divining Top
6% of 83 decks +0% synergy
Tarrian's Journal
6% of 69 decks +5% synergy
Enchantments
Simic Ascendancy
38% of 24 decks +36% synergy
Uncivil Unrest
37% of 19 decks +36% synergy
Greater Good
33% of 51 decks +31% synergy
Court of Garenbrig
33% of 43 decks +31% synergy
Rhystic Study
32% of 34 decks +19% synergy
Resourceful Defense
31% of 36 decks +30% synergy
Smothering Tithe
31% of 36 decks +19% synergy
Cathars' Crusade
28% of 36 decks +25% synergy
Felidar Retreat
28% of 36 decks +24% synergy
Tribute to the World Tree
24% of 51 decks +19% synergy
Vraska Joins Up
23% of 22 decks +21% synergy
Master Chef
22% of 51 decks +21% synergy
Sneak Attack
21% of 19 decks +20% synergy
Mystic Remora
21% of 34 decks +12% synergy
Retribution of the Ancients
18% of 83 decks +18% synergy
Abzan Ascendancy
17% of 24 decks +16% synergy
Hadana's Climb
17% of 24 decks +16% synergy
Noble Heritage
17% of 36 decks +16% synergy
Together Forever
17% of 36 decks +16% synergy
Virtue of Loyalty
17% of 36 decks +15% synergy
Flowering of the White Tree
14% of 36 decks +11% synergy
Sylvan Library
14% of 51 decks +8% synergy
The Meathook Massacre
13% of 83 decks +11% synergy
Doubling Season
12% of 51 decks +8% synergy
Unspeakable Symbol
11% of 83 decks +11% synergy
Journey to Eternity
10% of 51 decks +9% synergy
Animate Dead
10% of 83 decks +5% synergy
Black Market Connections
10% of 83 decks +4% synergy
Grave Pact
8% of 83 decks +6% synergy
Dramatic Finale
8% of 36 decks +8% synergy
The Kenriths' Royal Funeral
8% of 36 decks +8% synergy
Land Tax
8% of 36 decks +5% synergy
Anointed Procession
8% of 36 decks +4% synergy
Ordeal of Nylea
8% of 51 decks +7% synergy
Primal Vigor
8% of 51 decks +7% synergy
Utopia Sprawl
8% of 51 decks +4% synergy
Wild Growth
8% of 51 decks +3% synergy
Thran Vigil
7% of 83 decks +7% synergy
Phyrexian Reclamation
7% of 83 decks +5% synergy
Phyrexian Arena
7% of 83 decks -0% synergy
Pernicious Deed
6% of 51 decks +5% synergy
Moldervine Reclamation
6% of 51 decks +4% synergy
Parallel Lives
6% of 51 decks +2% synergy
Guardian Project
6% of 51 decks +2% synergy
Battles
Invasion of Ikoria
6% of 51 decks +3% synergy
Planeswalkers
Ajani, the Greathearted
17% of 24 decks +16% synergy
Grist, the Hunger Tide
16% of 51 decks +15% synergy
Ajani, Adversary of Tyrants
8% of 36 decks +8% synergy
Kaya, Geist Hunter
8% of 36 decks +8% synergy
Vraska, Betrayal's Sting
7% of 83 decks +5% synergy
Utility Lands
Eiganjo, Seat of the Empire
47% of 36 decks +43% synergy
Boseiju, Who Endures
47% of 51 decks +38% synergy
Urborg, Tomb of Yawgmoth
40% of 83 decks +30% synergy
Takenuma, Abandoned Mire
30% of 83 decks +24% synergy
Phyrexian Tower
28% of 83 decks +23% synergy
Yavimaya, Cradle of Growth
25% of 83 decks +16% synergy
Urza's Saga
24% of 83 decks +17% synergy
Reliquary Tower
23% of 83 decks -6% synergy
Minas Tirith
22% of 36 decks +18% synergy
Gavony Township
21% of 24 decks +19% synergy
Karn's Bastion
19% of 83 decks +14% synergy
Ancient Tomb
18% of 83 decks +7% synergy
Otawara, Soaring City
18% of 34 decks +9% synergy
Shizo, Death's Storehouse
17% of 83 decks +14% synergy
Bojuka Bog
17% of 83 decks +1% synergy
High Market
16% of 83 decks +12% synergy
Cabal Coffers
16% of 83 decks +10% synergy
Castle Locthwain
13% of 83 decks +10% synergy
Rogue's Passage
13% of 83 decks -6% synergy
Oran-Rief, the Vastwood
12% of 51 decks +9% synergy
Eiganjo Castle
11% of 36 decks +11% synergy
The Black Gate
10% of 83 decks +7% synergy
Forge of Heroes
8% of 83 decks +8% synergy
Barad-dûr
8% of 83 decks +7% synergy
Nykthos, Shrine to Nyx
8% of 83 decks +3% synergy
Restless Fortress
8% of 36 decks +8% synergy
Okina, Temple to the Grandfathers
8% of 51 decks +8% synergy
Llanowar Reborn
8% of 51 decks +7% synergy
Dryad Arbor
8% of 51 decks +6% synergy
The Shire
8% of 51 decks +6% synergy
Mosswort Bridge
8% of 51 decks +3% synergy
Volrath's Stronghold
7% of 83 decks +7% synergy
Nesting Grounds
7% of 83 decks +6% synergy
Minas Morgul, Dark Fortress
7% of 71 decks +6% synergy
Inkmoth Nexus
6% of 83 decks +5% synergy
Pendelhaven
6% of 51 decks +6% synergy
Mana Artifacts
Sol Ring
84% of 83 decks -0% synergy
Arcane Signet
60% of 83 decks -11% synergy
Rakdos Signet
37% of 19 decks +30% synergy
Talisman of Creativity
33% of 12 decks +27% synergy
Talisman of Indulgence
32% of 19 decks +26% synergy
Talisman of Hierarchy
22% of 36 decks +17% synergy
Fellwar Stone
19% of 83 decks -2% synergy
Dimir Signet
18% of 34 decks +10% synergy
Talisman of Dominance
18% of 34 decks +10% synergy
Orzhov Signet
17% of 36 decks +10% synergy
Mana Crypt
13% of 83 decks +2% synergy
Simic Signet
12% of 24 decks +9% synergy
Mox Amber
12% of 83 decks +8% synergy
Golgari Signet
12% of 51 decks +9% synergy
Mind Stone
8% of 83 decks -9% synergy
Relic of Legends
7% of 83 decks +5% synergy
Mox Opal
7% of 83 decks +3% synergy
Jeweled Lotus
7% of 83 decks -0% synergy
Thought Vessel
7% of 83 decks -9% synergy
Liquimetal Torque
6% of 83 decks +2% synergy
Talisman of Resilience
6% of 51 decks +4% synergy
Lands
Temple Garden
83% of 24 decks +74% synergy
Command Tower
82% of 83 decks +8% synergy
Indatha Triome
79% of 24 decks +76% synergy
Raffine's Tower
78% of 9 decks +74% synergy
Godless Shrine
78% of 36 decks +68% synergy
Overgrown Tomb
76% of 51 decks +67% synergy
Watery Grave
74% of 34 decks +63% synergy
Breeding Pool
71% of 24 decks +62% synergy
Xander's Lounge
67% of 12 decks +63% synergy
Zagoth Triome
67% of 24 decks +63% synergy
Spara's Headquarters
67% of 9 decks +63% synergy
Hallowed Fountain
67% of 9 decks +58% synergy
Blood Crypt
63% of 19 decks +54% synergy
Vault of Champions
58% of 36 decks +52% synergy
Steam Vents
58% of 12 decks +49% synergy
Morphic Pool
53% of 34 decks +46% synergy
Sulfurous Springs
53% of 19 decks +48% synergy
Undergrowth Stadium
51% of 51 decks +45% synergy
Rejuvenating Springs
50% of 24 decks +44% synergy
Sulfur Falls
50% of 12 decks +43% synergy
Bountiful Promenade
46% of 24 decks +41% synergy
Verdant Catacombs
46% of 83 decks +34% synergy
Exotic Orchard
43% of 83 decks +8% synergy
Luxury Suite
42% of 19 decks +36% synergy
Dragonskull Summit
42% of 19 decks +35% synergy
Training Center
42% of 12 decks +35% synergy
Drowned Catacomb
41% of 34 decks +35% synergy
Isolated Chapel
39% of 36 decks +33% synergy
Marsh Flats
37% of 83 decks +26% synergy
Windswept Heath
34% of 83 decks +23% synergy
Seaside Citadel
33% of 9 decks +30% synergy
Hedge Maze
33% of 12 decks +30% synergy
Temple of Epiphany
33% of 12 decks +29% synergy
Hinterland Harbor
33% of 24 decks +28% synergy
Shivan Reef
33% of 12 decks +27% synergy
Polluted Delta
33% of 83 decks +21% synergy
Underground Mortuary
32% of 31 decks +28% synergy
Woodland Cemetery
29% of 51 decks +24% synergy
Opulent Palace
29% of 24 decks +26% synergy
Caves of Koilos
28% of 36 decks +21% synergy
Misty Rainforest
27% of 83 decks +15% synergy
Badlands
26% of 19 decks +23% synergy
Smoldering Marsh
26% of 19 decks +19% synergy
Mana Confluence
25% of 83 decks +18% synergy
Brightclimb Pathway
25% of 36 decks +23% synergy
Sandsteppe Citadel
25% of 24 decks +22% synergy
Lush Portico
25% of 12 decks +22% synergy
Scrubland
25% of 36 decks +22% synergy
Volcanic Island
25% of 12 decks +22% synergy
Crumbling Necropolis
25% of 12 decks +21% synergy