Shalai and Hallar + Devoted Druid + Arcus Acolyte + Hardened Scales

Shalai and Hallar
Devoted Druid
Arcus Acolyte
Hardened Scales

Requires
Shalai and Hallar must be on the battlefield. Devoted Druid must be on the battlefield. Arcus Acolyte must be on the battlefield. Hardened Scales 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
0.42% of 8949 decks 38 decks
Marath, Will of the Wild
0.04% of 2413 decks 1 decks
High Synergy Cards
Kami of Whispered Hopes
90% of 39 decks +80% synergy
The Red Terror
82% of 39 decks +79% synergy
Conclave Mentor
79% of 39 decks +73% synergy
Heliod, Sun-Crowned
69% of 39 decks +67% synergy
Ozolith, the Shattered Spire
72% of 39 decks +65% synergy
All Will Be One
72% of 39 decks +64% synergy
Kutzil, Malamet Exemplar
83% of 23 decks +60% synergy
Scurry Oak
56% of 39 decks +54% synergy
Walking Ballista
54% of 39 decks +52% synergy
Mikaeus, the Lunarch
54% of 39 decks +50% synergy
Top Cards
Swords to Plowshares
64% of 39 decks +5% synergy
Path to Exile
59% of 39 decks +6% synergy
Rhythm of the Wild
56% of 39 decks +23% synergy
Forgotten Ancient
54% of 39 decks +48% synergy
Incubation Druid
54% of 39 decks +44% synergy
Inspiring Call
51% of 39 decks +41% synergy
Eladamri's Call
51% of 39 decks +39% synergy
Envoy of the Ancestors
50% of 10 decks +47% synergy
War Elemental
49% of 39 decks +47% synergy
Ivy Lane Denizen
49% of 39 decks +47% synergy
Creatures
Champion of Lambholt
49% of 39 decks +35% synergy
Basking Broodscale
47% of 15 decks +41% synergy
Evolution Witness
47% of 15 decks +39% synergy
Gyre Sage
46% of 39 decks +37% synergy
Halana and Alena, Partners
44% of 39 decks +39% synergy
Rishkar, Peema Renegade
41% of 39 decks +34% synergy
Delighted Halfling
40% of 35 decks +29% synergy
Trelasarra, Moon Dancer
38% of 39 decks +38% synergy
Herd Baloth
38% of 39 decks +36% synergy
Tender Wildguide
38% of 8 decks +32% synergy
Ajani's Pridemate
36% of 39 decks +34% synergy
Good-Fortune Unicorn
36% of 39 decks +32% synergy
Managorger Hydra
36% of 39 decks +31% synergy
Birds of Paradise
36% of 39 decks +13% synergy
Bright-Palm, Soul Awakener
35% of 37 decks +31% synergy
Shalai, Voice of Plenty
33% of 39 decks +29% synergy
Avacyn's Pilgrim
33% of 39 decks +19% synergy
Anim Pakal, Thousandth Moon
32% of 19 decks +23% synergy
Rosie Cotton of South Lane
31% of 35 decks +24% synergy
Llanowar Elves
31% of 39 decks +13% synergy
Bristly Bill, Spine Sower
29% of 17 decks +25% synergy
Aragorn, Hornburg Hero
29% of 24 decks +27% synergy
Celestial Unicorn
28% of 39 decks +28% synergy
Abzan Battle Priest
28% of 39 decks +25% synergy
Armorcraft Judge
28% of 39 decks +24% synergy
Sovereign Okinec Ahau
26% of 23 decks +20% synergy
Archangel of Thune
26% of 39 decks +25% synergy
Vigor
26% of 39 decks +23% synergy
Hamza, Guardian of Arashin
26% of 39 decks +22% synergy
Esper Sentinel
26% of 39 decks +13% synergy
Elvish Mystic
26% of 39 decks +11% synergy
Arwen, Weaver of Hope
25% of 32 decks +19% synergy
Spike Feeder
23% of 39 decks +23% synergy
Grand Abolisher
23% of 39 decks +18% synergy
Voice of the Blessed
21% of 39 decks +20% synergy
Eternal Witness
21% of 39 decks +11% synergy
Conclave Sledge-Captain
18% of 38 decks +14% synergy
Wildwood Scourge
18% of 39 decks +17% synergy
Benevolent Hydra
18% of 39 decks +17% synergy
Soul Warden
18% of 39 decks +17% synergy
Kodama of the West Tree
18% of 39 decks +12% synergy
Dusk Legion Duelist
18% of 39 decks +12% synergy
Krenko, Tin Street Kingpin
18% of 39 decks +11% synergy
Taurean Mauler
18% of 39 decks +8% synergy
Dauntless Dismantler
17% of 23 decks +15% synergy
Ojer Axonil, Deepest Might
17% of 24 decks +16% synergy
Soul's Attendant
15% of 39 decks +15% synergy
Enduring Scalelord
15% of 39 decks +14% synergy
Vorinclex, Monstrous Raider
15% of 39 decks +13% synergy
Evolution Sage
15% of 39 decks +11% synergy
Instants
Worldly Tutor
44% of 39 decks +29% synergy
Heroic Intervention
36% of 39 decks -3% synergy
Enlightened Tutor
33% of 39 decks +20% synergy
Snakeskin Veil
31% of 39 decks +29% synergy
Beast Within
28% of 39 decks -10% synergy
Generous Gift
26% of 39 decks -6% synergy
Chord of Calling
23% of 39 decks +16% synergy
Silence
18% of 39 decks +14% synergy
Teferi's Protection
18% of 39 decks -1% synergy
Stroke of Midnight
16% of 32 decks +6% synergy
Abrade
15% of 39 decks +12% synergy
Unbreakable Formation
15% of 39 decks +7% synergy
Deflecting Swat
15% of 39 decks +4% synergy
Chaos Warp
15% of 39 decks -2% synergy
Invigorating Surge
13% of 39 decks +12% synergy
Signal the Clans
13% of 39 decks +12% synergy
Silkguard
13% of 39 decks +11% synergy
Dromoka's Command
13% of 39 decks +10% synergy
Nature's Claim
13% of 39 decks +7% synergy
Flawless Maneuver
13% of 39 decks -1% synergy
Boros Charm
13% of 39 decks -16% synergy
Veil of Summer
10% of 39 decks +6% synergy
Return to Nature
10% of 39 decks +5% synergy
Take Up the Shield
8% of 39 decks +7% synergy
Calamity's Wake
8% of 39 decks +7% synergy
Surge of Salvation
8% of 39 decks +6% synergy
Reprieve
8% of 39 decks +5% synergy
Pyroblast
8% of 39 decks +4% synergy
Tamiyo's Safekeeping
8% of 39 decks +4% synergy
Congregation at Dawn
8% of 39 decks +4% synergy
Akroma's Will
8% of 39 decks -12% synergy
Sorceries
Cultivate
49% of 39 decks -5% synergy
Nature's Lore
41% of 39 decks +3% synergy
Three Visits
38% of 39 decks +9% synergy
Farseek
38% of 39 decks -12% synergy
Damning Verdict
28% of 39 decks +23% synergy
Kodama's Reach
26% of 39 decks -10% synergy
Requisition Raid
24% of 17 decks +17% synergy
Rampant Growth
23% of 39 decks -17% synergy
Time of Need
15% of 39 decks +15% synergy
Twinflame
15% of 39 decks +14% synergy
Eldritch Evolution
15% of 39 decks +11% synergy
Gamble
13% of 39 decks +9% synergy
Austere Command
13% of 39 decks -0% synergy
Sylvan Tutor
10% of 39 decks +9% synergy
Rishkar's Expertise
10% of 39 decks -5% synergy
Angelfire Ignition
8% of 39 decks +7% synergy
Thirsting Roots
8% of 39 decks +7% synergy
Sylvan Scrying
8% of 39 decks +6% synergy
Idyllic Tutor
8% of 39 decks +4% synergy
Green Sun's Zenith
8% of 39 decks +3% synergy
Jeska's Will
8% of 39 decks +1% synergy
Finale of Devastation
8% of 39 decks -2% synergy
Shamanic Revelation
8% of 39 decks -10% synergy
Utility Artifacts
Swiftfoot Boots
28% of 39 decks +3% synergy
The Ozolith
26% of 39 decks +21% synergy
The Great Henge
26% of 39 decks +12% synergy
Shadowspear
23% of 39 decks +21% synergy
Basilisk Collar
23% of 39 decks +18% synergy
Staff of Domination
18% of 39 decks +17% synergy
Lightning Greaves
15% of 39 decks -8% synergy
Animation Module
13% of 39 decks +13% synergy
Agatha's Soul Cauldron
9% of 32 decks +8% synergy
Talon of Pain
8% of 39 decks +8% synergy
The One Ring
8% of 39 decks +4% synergy
Lifecrafter's Bestiary
8% of 39 decks +2% synergy
Ashnod's Altar
8% of 39 decks +1% synergy
Enchantments
Branching Evolution
49% of 39 decks +44% synergy
Cathars' Crusade
46% of 39 decks +38% synergy
Innkeeper's Talent
43% of 7 decks +34% synergy
Court of Garenbrig
34% of 29 decks +31% synergy
Mayael's Aria
31% of 39 decks +25% synergy
Annie Joins Up
29% of 17 decks +4% synergy
Felidar Retreat
28% of 39 decks +8% synergy
Uncivil Unrest
26% of 38 decks +20% synergy
Cleric Class
26% of 39 decks +25% synergy
Tribute to the World Tree
23% of 39 decks +14% synergy
Swift Reconfiguration
21% of 39 decks +20% synergy
Invigorating Hot Spring
21% of 39 decks +18% synergy
Sylvan Library
21% of 39 decks +9% synergy
Lifelink
18% of 39 decks +18% synergy
Ajani's Welcome
15% of 39 decks +14% synergy
Keen Sense
15% of 39 decks +14% synergy
Rite of Passage
15% of 39 decks +14% synergy
Snake Umbra
13% of 39 decks +10% synergy
Virtue of Loyalty
10% of 29 decks +7% synergy
Light of Promise
10% of 39 decks +10% synergy
Resourceful Defense
10% of 39 decks +9% synergy
Together Forever
10% of 39 decks +8% synergy
Primal Vigor
10% of 39 decks +6% synergy
Utopia Sprawl
10% of 39 decks +3% synergy
Sunbond
8% of 39 decks +8% synergy
Spirit Link
8% of 39 decks +7% synergy
Felidar Umbra
8% of 39 decks +7% synergy
Battles
Invasion of Ikoria
17% of 36 decks +8% synergy
Planeswalkers
Jiang Yanggu, Wildcrafter
8% of 39 decks +7% synergy
Ajani, the Greathearted
8% of 39 decks +4% synergy
Utility Lands
Gavony Township
49% of 39 decks +36% synergy
Karn's Bastion
36% of 39 decks +33% synergy
Yavimaya, Cradle of Growth
26% of 39 decks +7% synergy
Rogue's Passage
21% of 39 decks -6% synergy
Boseiju, Who Endures
18% of 39 decks +1% synergy
Oran-Rief, the Vastwood
15% of 39 decks +13% synergy
Reliquary Tower
15% of 39 decks -2% synergy
Mosswort Bridge
15% of 39 decks -4% synergy
Llanowar Reborn
13% of 39 decks +11% synergy
Urza's Saga
10% of 39 decks +7% synergy
Drannith Ruins
8% of 36 decks +7% synergy
Nesting Grounds
8% of 39 decks +7% synergy
Gaea's Cradle
8% of 39 decks +2% synergy
Ancient Tomb
8% of 39 decks +0% synergy
Temple of the False God
8% of 39 decks -4% synergy
Mana Artifacts
Arcane Signet
82% of 39 decks +10% synergy
Sol Ring
77% of 39 decks -7% synergy
Fellwar Stone
31% of 39 decks +20% synergy
Selesnya Signet
18% of 39 decks +6% synergy
Boros Signet
15% of 39 decks +4% synergy
Commander's Sphere
15% of 39 decks +3% synergy
Gruul Signet
15% of 39 decks +3% synergy
Mana Crypt
13% of 39 decks +6% synergy
Talisman of Unity
13% of 39 decks +5% synergy
Talisman of Impulse
10% of 39 decks +3% synergy
Talisman of Conviction
10% of 39 decks +3% synergy
Chromatic Lantern
10% of 39 decks -1% synergy
Mind Stone
8% of 39 decks +5% synergy
Chrome Mox
8% of 39 decks +4% synergy
Lands
Command Tower
92% of 39 decks +2% synergy
Temple Garden
54% of 39 decks +11% synergy
Stomping Ground
54% of 39 decks +10% synergy
Jetmir's Garden
54% of 39 decks +8% synergy
Cinder Glade
54% of 39 decks +4% synergy
Exotic Orchard
49% of 39 decks -4% synergy
Canopy Vista
46% of 39 decks -3% synergy
Windswept Heath
44% of 39 decks +15% synergy
Arid Mesa
41% of 39 decks +13% synergy
Sacred Foundry
41% of 39 decks +2% synergy
Jungle Shrine
41% of 39 decks -16% synergy
Sheltering Landscape
40% of 10 decks +14% synergy
Wooded Foothills
36% of 39 decks +9% synergy
Spectator Seating
36% of 39 decks +7% synergy
Rootbound Crag
33% of 39 decks +1% synergy
Spire Garden
31% of 39 decks +1% synergy
Bountiful Promenade
31% of 39 decks -1% synergy
Sunpetal Grove
31% of 39 decks -1% synergy
Clifftop Retreat
31% of 39 decks -3% synergy
Commercial District
29% of 17 decks +18% synergy
Lush Portico
29% of 17 decks +18% synergy
Path of Ancestry
28% of 39 decks -5% synergy
Elegant Parlor
24% of 17 decks +15% synergy
Sungrass Prairie
23% of 39 decks +9% synergy
Evolving Wilds
23% of 39 decks -7% synergy
Overgrown Farmland
21% of 39 decks -2% synergy
Rockfall Vale
21% of 39 decks -6% synergy
Bretagard Stronghold
18% of 39 decks +16% synergy
Plateau
18% of 39 decks +7% synergy
Taiga
18% of 39 decks +7% synergy
Savannah
18% of 39 decks +7% synergy
Mossfire Valley
18% of 39 decks +6% synergy
Temple of Abandon
18% of 39 decks +5% synergy
Krosan Verge
18% of 39 decks +3% synergy
Brushland
18% of 39 decks +2% synergy
Karplusan Forest
18% of 39 decks +2% synergy
Battlefield Forge
18% of 39 decks -0% synergy
Fortified Village
18% of 39 decks -1% synergy
Furycalm Snarl
15% of 39 decks +3% synergy
Temple of Plenty
15% of 39 decks +2% synergy
Temple of Triumph
15% of 39 decks +1% synergy
Game Trail
15% of 39 decks -3% synergy
Opal Palace
13% of 39 decks +11% synergy
Terramorphic Expanse
13% of 39 decks -10% synergy
Scalding Tarn
10% of 39 decks +5% synergy
Bloodstained Mire
10% of 39 decks +5% synergy
Marsh Flats
10% of 39 decks +4% synergy
Verdant Catacombs
10% of 39 decks +3% synergy
Misty Rainforest
10% of 39 decks +3% synergy
Cragcrown Pathway
10% of 39 decks +2% synergy