Shalai and Hallar + Devoted Druid + Arcus Acolyte + Benevolent Hydra

Shalai and Hallar
Devoted Druid
Arcus Acolyte
Benevolent Hydra

Requires
Shalai and Hallar must be on the battlefield. Devoted Druid must be on the battlefield. Arcus Acolyte must be on the battlefield. Benevolent Hydra must be on the battlefield. Devoted Druid does not have summoning sickness and does not have a -1/-1 counter on it.
Steps
  1. Activate Devoted Druid's first ability by tapping it, adding .
  2. Activate Devoted Druid's second ability by putting a -1/-1 counter on it, untapping it.
  3. If Devoted Druid has a +1/+1 counter on it, repeat from step 1 until Devoted Druid has no +1/+1 counters.
  4. Activate Devoted Druid's outlast ability by paying and tapping it, putting two +1/+1 counters on Devoted Druid.
  5. Shalai and Hallar triggers, dealing 2 damage to an opponent.
  6. Repeat from step 2.
Results
Infinite damage.

Shalai and Hallar
0.09% of 9290 decks 8 decks
New Cards
Exemplar of Light
100% of 1 decks +96% synergy
High Synergy Cards
Heliod, Sun-Crowned
100% of 8 decks +97% synergy
The Red Terror
100% of 8 decks +97% synergy
Ozolith, the Shattered Spire
100% of 8 decks +93% synergy
All Will Be One
100% of 8 decks +93% synergy
Gyre Sage
100% of 8 decks +91% synergy
Kami of Whispered Hopes
100% of 8 decks +91% synergy
War Elemental
88% of 8 decks +86% synergy
Hardened Scales
88% of 8 decks +79% synergy
Incubation Druid
88% of 8 decks +77% synergy
Inspiring Call
88% of 8 decks +77% synergy
Top Cards
Rhythm of the Wild
88% of 8 decks +54% synergy
Kutzil, Malamet Exemplar
83% of 6 decks +61% synergy
Walking Ballista
75% of 8 decks +73% synergy
Damning Verdict
75% of 8 decks +70% synergy
Branching Evolution
75% of 8 decks +70% synergy
Conclave Mentor
75% of 8 decks +68% synergy
Nature's Lore
75% of 8 decks +37% synergy
Farseek
75% of 8 decks +25% synergy
Path to Exile
75% of 8 decks +22% synergy
Swords to Plowshares
75% of 8 decks +15% synergy
Creatures
Tender Wildguide
67% of 3 decks +61% synergy
Rishkar, Peema Renegade
62% of 8 decks +55% synergy
Champion of Lambholt
62% of 8 decks +49% synergy
Birds of Paradise
62% of 8 decks +40% synergy
Delighted Halfling
57% of 7 decks +46% synergy
Good-Fortune Unicorn
50% of 8 decks +46% synergy
Kalonian Hydra
50% of 8 decks +45% synergy
Shalai, Voice of Plenty
50% of 8 decks +45% synergy
Managorger Hydra
50% of 8 decks +45% synergy
Halana and Alena, Partners
50% of 8 decks +45% synergy
Grand Abolisher
50% of 8 decks +45% synergy
Arwen, Weaver of Hope
43% of 7 decks +37% synergy
Basking Broodscale
40% of 5 decks +35% synergy
Evolution Witness
40% of 5 decks +32% synergy
Celestial Unicorn
38% of 8 decks +37% synergy
Voice of the Blessed
38% of 8 decks +37% synergy
Trelasarra, Moon Dancer
38% of 8 decks +37% synergy
Ajani's Pridemate
38% of 8 decks +36% synergy
Drannith Magistrate
38% of 8 decks +33% synergy
Mikaeus, the Lunarch
38% of 8 decks +33% synergy
Armorcraft Judge
38% of 8 decks +33% synergy
Dusk Legion Duelist
38% of 8 decks +32% synergy
Kodama of the West Tree
38% of 8 decks +32% synergy
Forgotten Ancient
38% of 8 decks +32% synergy
Esper Sentinel
38% of 8 decks +25% synergy
Avacyn's Pilgrim
38% of 8 decks +24% synergy
Gideon's Company
25% of 8 decks +25% synergy
Phyrexian Devourer
25% of 8 decks +25% synergy
Twinblade Paladin
25% of 8 decks +25% synergy
Archangel of Thune
25% of 8 decks +24% synergy
Ivy Lane Denizen
25% of 8 decks +23% synergy
Vorinclex, Monstrous Raider
25% of 8 decks +23% synergy
Envoy of the Ancestors
25% of 4 decks +23% synergy
Vigor
25% of 8 decks +22% synergy
Abzan Battle Priest
25% of 8 decks +22% synergy
Evolution Sage
25% of 8 decks +21% synergy
Krenko, Tin Street Kingpin
25% of 8 decks +18% synergy
Eternal Witness
25% of 8 decks +16% synergy
Toski, Bearer of Secrets
25% of 8 decks +15% synergy
Elvish Mystic
25% of 8 decks +10% synergy
Goldvein Hydra
20% of 5 decks +18% synergy
Railway Brawler
20% of 5 decks +18% synergy
Disciple of Freyalise
20% of 5 decks +16% synergy
Bristly Bill, Spine Sower
20% of 5 decks +15% synergy
Phelia, Exuberant Shepherd
20% of 5 decks +15% synergy
Anim Pakal, Thousandth Moon
20% of 5 decks +11% synergy
Elenda's Hierophant
17% of 6 decks +17% synergy
Ojer Axonil, Deepest Might
17% of 6 decks +16% synergy
Aragorn, Hornburg Hero
17% of 6 decks +15% synergy
Dauntless Dismantler
17% of 6 decks +15% synergy
Instants
Eladamri's Call
62% of 8 decks +51% synergy
Enlightened Tutor
62% of 8 decks +49% synergy
Worldly Tutor
62% of 8 decks +48% synergy
Heroic Intervention
62% of 8 decks +24% synergy
Chord of Calling
50% of 8 decks +43% synergy
Beast Within
50% of 8 decks +12% synergy
Snakeskin Veil
38% of 8 decks +35% synergy
Teferi's Protection
38% of 8 decks +19% synergy
Generous Gift
38% of 8 decks +6% synergy
Stroke of Midnight
29% of 7 decks +18% synergy
Silkguard
25% of 8 decks +23% synergy
Silence
25% of 8 decks +21% synergy
Boros Charm
25% of 8 decks -4% synergy
Archdruid's Charm
20% of 5 decks +15% synergy
Legolas's Quick Reflexes
17% of 6 decks +15% synergy
Wild Ricochet
12% of 8 decks +12% synergy
Ruinous Intrusion
12% of 8 decks +12% synergy
Take Up the Shield
12% of 8 decks +12% synergy
Mana Tithe
12% of 8 decks +12% synergy
Signal the Clans
12% of 8 decks +12% synergy
Gaea's Gift
12% of 8 decks +11% synergy
Return to Dust
12% of 8 decks +11% synergy
Semester's End
12% of 8 decks +11% synergy
Reprieve
12% of 8 decks +10% synergy
Valakut Awakening
12% of 8 decks +10% synergy
Dromoka's Command
12% of 8 decks +10% synergy
Veil of Summer
12% of 8 decks +8% synergy
Nature's Claim
12% of 8 decks +7% synergy
Unbreakable Formation
12% of 8 decks +4% synergy
Deflecting Swat
12% of 8 decks +1% synergy
Chaos Warp
12% of 8 decks -5% synergy
Akroma's Will
12% of 8 decks -8% synergy
Return of the Wildspeaker
12% of 8 decks -10% synergy
Sorceries
Kodama's Reach
50% of 8 decks +15% synergy
Three Visits
38% of 8 decks +8% synergy
Time of Need
25% of 8 decks +24% synergy
Idyllic Tutor
25% of 8 decks +21% synergy
Finale of Devastation
25% of 8 decks +16% synergy
Rampant Growth
25% of 8 decks -14% synergy
Cultivate
25% of 8 decks -29% synergy
Green Sun's Twilight
12% of 8 decks +11% synergy
Sylvan Tutor
12% of 8 decks +11% synergy
Natural Order
12% of 8 decks +10% synergy
Gamble
12% of 8 decks +9% synergy
Eldritch Evolution
12% of 8 decks +8% synergy
Green Sun's Zenith
12% of 8 decks +8% synergy
Vandalblast
12% of 8 decks +7% synergy
Bala Ged Recovery
12% of 8 decks +6% synergy
Farewell
12% of 8 decks +2% synergy
Austere Command
12% of 8 decks -0% synergy
Rishkar's Expertise
12% of 8 decks -3% synergy
Utility Artifacts
The Ozolith
50% of 8 decks +45% synergy
Swiftfoot Boots
50% of 8 decks +25% synergy
The Great Henge
38% of 8 decks +23% synergy
Shadowspear
25% of 8 decks +23% synergy
The One Ring
25% of 8 decks +21% synergy
Basilisk Collar
25% of 8 decks +20% synergy
Agatha's Soul Cauldron
14% of 7 decks +13% synergy
Animation Module
12% of 8 decks +12% synergy
Emerald Medallion
12% of 8 decks +11% synergy
Lifecrafter's Bestiary
12% of 8 decks +7% synergy
Enchantments
Uncivil Unrest
62% of 8 decks +56% synergy
Stocking the Pantry
50% of 2 decks +46% synergy
Innkeeper's Talent
50% of 2 decks +42% synergy
Cathars' Crusade
50% of 8 decks +42% synergy
Tribute to the World Tree
50% of 8 decks +41% synergy
Court of Garenbrig
43% of 7 decks +40% synergy
Sylvan Library
38% of 8 decks +26% synergy
Felidar Retreat
38% of 8 decks +18% synergy
Lifelink
25% of 8 decks +25% synergy
Cleric Class
25% of 8 decks +24% synergy
Rite of Passage
25% of 8 decks +23% synergy
Mayael's Aria
25% of 8 decks +20% synergy
Guardian Project
25% of 8 decks +14% synergy
Well Rested
20% of 5 decks +16% synergy
Light of Promise
12% of 8 decks +12% synergy
Druid's Call
12% of 8 decks +12% synergy
Rune of Sustenance
12% of 8 decks +12% synergy
Together Forever
12% of 8 decks +10% synergy
Carpet of Flowers
12% of 8 decks +10% synergy
Deafening Silence
12% of 8 decks +9% synergy
Primal Vigor
12% of 8 decks +9% synergy
Elemental Bond
12% of 8 decks +1% synergy
Doubling Season
12% of 8 decks +1% synergy
Battles
Invasion of Ikoria
38% of 8 decks +29% synergy
Planeswalkers
Jiang Yanggu, Wildcrafter
12% of 8 decks +12% synergy
Minsc & Boo, Timeless Heroes
12% of 8 decks +11% synergy
Ajani, the Greathearted
12% of 8 decks +9% synergy
Utility Lands
Gavony Township
75% of 8 decks +63% synergy
Karn's Bastion
50% of 8 decks +47% synergy
Rogue's Passage
38% of 8 decks +11% synergy
Llanowar Reborn
25% of 8 decks +23% synergy
Nesting Grounds
12% of 8 decks +12% synergy
Drannith Ruins
12% of 8 decks +11% synergy
Skarrg, the Rage Pits
12% of 8 decks +11% synergy
Bonders' Enclave
12% of 8 decks +10% synergy
Oran-Rief, the Vastwood
12% of 8 decks +10% synergy
Eiganjo, Seat of the Empire
12% of 8 decks +7% synergy
Gaea's Cradle
12% of 8 decks +7% synergy
Boseiju, Who Endures
12% of 8 decks -4% synergy
Kessig Wolf Run
12% of 8 decks -6% synergy
Mosswort Bridge
12% of 8 decks -6% synergy
Mana Artifacts
Sol Ring
75% of 8 decks -9% synergy
Arcane Signet
62% of 8 decks -10% synergy
Fellwar Stone
38% of 8 decks +27% synergy
Talisman of Unity
25% of 8 decks +17% synergy
Mana Crypt
12% of 8 decks +7% synergy
Talisman of Impulse
12% of 8 decks +5% synergy
Talisman of Conviction
12% of 8 decks +5% synergy
Boros Signet
12% of 8 decks +1% synergy
Chromatic Lantern
12% of 8 decks +1% synergy
Selesnya Signet
12% of 8 decks +1% synergy
Commander's Sphere
12% of 8 decks +1% synergy
Gruul Signet
12% of 8 decks +0% synergy
Lands
Windswept Heath
75% of 8 decks +46% synergy
Sacred Foundry
75% of 8 decks +36% synergy
Temple Garden
75% of 8 decks +32% synergy
Stomping Ground
75% of 8 decks +32% synergy
Jetmir's Garden
75% of 8 decks +29% synergy
Wooded Foothills
62% of 8 decks +35% synergy
Arid Mesa
62% of 8 decks +35% synergy
Spectator Seating
62% of 8 decks +34% synergy
Spire Garden
62% of 8 decks +33% synergy
Bountiful Promenade
62% of 8 decks +31% synergy
Canopy Vista
62% of 8 decks +13% synergy
Cinder Glade
62% of 8 decks +12% synergy
Exotic Orchard
62% of 8 decks +10% synergy
Command Tower
62% of 8 decks -28% synergy
Overgrown Farmland
50% of 8 decks +28% synergy
Sheltering Landscape
50% of 4 decks +25% synergy
Rockfall Vale
50% of 8 decks +23% synergy
Elegant Parlor
40% of 5 decks +31% synergy
Commercial District
40% of 5 decks +29% synergy
Lush Portico
40% of 5 decks +28% synergy
Sundown Pass
38% of 8 decks +22% synergy
Sunpetal Grove
38% of 8 decks +5% synergy
Clifftop Retreat
38% of 8 decks +3% synergy
Brushland
25% of 8 decks +9% synergy
Karplusan Forest
25% of 8 decks +9% synergy
Battlefield Forge
25% of 8 decks +7% synergy
Game Trail
25% of 8 decks +7% synergy
Fortified Village
25% of 8 decks +6% synergy
Evolving Wilds
25% of 8 decks -5% synergy
Rootbound Crag
25% of 8 decks -7% synergy
Path of Ancestry
25% of 8 decks -9% synergy
Jungle Shrine
25% of 8 decks -32% synergy
Demolition Field
12% of 8 decks +11% synergy
Bretagard Stronghold
12% of 8 decks +11% synergy
Fire-Lit Thicket
12% of 8 decks +9% synergy
Wooded Bastion
12% of 8 decks +9% synergy
Rugged Prairie
12% of 8 decks +6% synergy
Mana Confluence
12% of 8 decks +5% synergy
City of Brass
12% of 8 decks +5% synergy
Cragcrown Pathway
12% of 8 decks +4% synergy
Branchloft Pathway
12% of 8 decks +3% synergy
Furycalm Snarl
12% of 8 decks -0% synergy
Temple of Abandon
12% of 8 decks -1% synergy
Temple of Plenty
12% of 8 decks -1% synergy
Temple of Triumph
12% of 8 decks -2% synergy
Terramorphic Expanse
12% of 8 decks -11% synergy