Shalai and Hallar + Devoted Druid + Arcus Acolyte + Conclave Mentor

Shalai and Hallar
Devoted Druid
Arcus Acolyte
Conclave Mentor

Requires
Shalai and Hallar must be on the battlefield. Devoted Druid must be on the battlefield. Arcus Acolyte must be on the battlefield. Conclave Mentor 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
0.39% of 9410 decks 37 decks
Marath, Will of the Wild
0.04% of 2487 decks 1 decks
High Synergy Cards
Kami of Whispered Hopes
87% of 38 decks +78% synergy
Hardened Scales
82% of 38 decks +73% synergy
The Red Terror
71% of 38 decks +68% synergy
Forgotten Ancient
63% of 38 decks +57% synergy
Heliod, Sun-Crowned
58% of 38 decks +55% synergy
Ozolith, the Shattered Spire
61% of 38 decks +54% synergy
Mikaeus, the Lunarch
58% of 38 decks +54% synergy
All Will Be One
61% of 38 decks +53% synergy
Scurry Oak
53% of 38 decks +50% synergy
Inspiring Call
61% of 38 decks +50% synergy
Top Cards
Kutzil, Malamet Exemplar
71% of 24 decks +48% synergy
Swords to Plowshares
66% of 38 decks +6% synergy
Path to Exile
61% of 38 decks +7% synergy
Incubation Druid
53% of 38 decks +43% synergy
Champion of Lambholt
53% of 38 decks +39% synergy
Rhythm of the Wild
53% of 38 decks +19% synergy
Managorger Hydra
50% of 38 decks +45% synergy
Cultivate
50% of 38 decks -4% synergy
Ivy Lane Denizen
47% of 38 decks +46% synergy
Branching Evolution
47% of 38 decks +42% synergy
Creatures
Rishkar, Peema Renegade
47% of 38 decks +40% synergy
Evolution Witness
46% of 13 decks +39% synergy
War Elemental
45% of 38 decks +43% synergy
Gyre Sage
45% of 38 decks +36% synergy
Ajani's Pridemate
42% of 38 decks +40% synergy
Walking Ballista
42% of 38 decks +40% synergy
Herd Baloth
42% of 38 decks +40% synergy
Good-Fortune Unicorn
42% of 38 decks +38% synergy
Halana and Alena, Partners
42% of 38 decks +37% synergy
Envoy of the Ancestors
42% of 12 decks +39% synergy
Bright-Palm, Soul Awakener
41% of 37 decks +37% synergy
Basking Broodscale
38% of 13 decks +33% synergy
Celestial Unicorn
37% of 38 decks +37% synergy
Trelasarra, Moon Dancer
37% of 38 decks +36% synergy
Anim Pakal, Thousandth Moon
35% of 20 decks +26% synergy
Armorcraft Judge
34% of 38 decks +30% synergy
Abzan Battle Priest
32% of 38 decks +29% synergy
Tender Wildguide
30% of 10 decks +25% synergy
Delighted Halfling
29% of 34 decks +19% synergy
Hamza, Guardian of Arashin
29% of 38 decks +25% synergy
Shalai, Voice of Plenty
29% of 38 decks +24% synergy
Avacyn's Pilgrim
29% of 38 decks +15% synergy
Rosie Cotton of South Lane
26% of 34 decks +19% synergy
Sovereign Okinec Ahau
25% of 24 decks +19% synergy
Vigor
24% of 38 decks +21% synergy
Conclave Sledge-Captain
24% of 38 decks +20% synergy
Taurean Mauler
24% of 38 decks +13% synergy
Llanowar Elves
24% of 38 decks +6% synergy
Birds of Paradise
24% of 38 decks +1% synergy
Disciple of Freyalise
23% of 13 decks +19% synergy
Voice of the Blessed
21% of 38 decks +21% synergy
Spike Feeder
21% of 38 decks +21% synergy
Evolution Sage
21% of 38 decks +17% synergy
Kalonian Hydra
21% of 38 decks +17% synergy
Dusk Legion Duelist
21% of 38 decks +16% synergy
Krenko, Tin Street Kingpin
21% of 38 decks +14% synergy
Elvish Mystic
21% of 38 decks +6% synergy
Bristly Bill, Spine Sower
20% of 15 decks +15% synergy
Ageless Entity
18% of 38 decks +18% synergy
Scavenging Ooze
18% of 38 decks +16% synergy
Grand Abolisher
18% of 38 decks +13% synergy
Abzan Falconer
18% of 38 decks +13% synergy
Eternal Witness
18% of 38 decks +9% synergy
Dauntless Dismantler
17% of 24 decks +15% synergy
Aragorn, Hornburg Hero
16% of 25 decks +14% synergy
Wildwood Scourge
16% of 38 decks +15% synergy
Archangel of Thune
16% of 38 decks +15% synergy
Benevolent Hydra
16% of 38 decks +15% synergy
Constable of the Realm
16% of 38 decks +15% synergy
Cankerbloom
16% of 38 decks +14% synergy
Instants
Eladamri's Call
39% of 38 decks +28% synergy
Heroic Intervention
39% of 38 decks +1% synergy
Snakeskin Veil
34% of 38 decks +32% synergy
Worldly Tutor
34% of 38 decks +19% synergy
Generous Gift
32% of 38 decks +0% synergy
Enlightened Tutor
26% of 38 decks +13% synergy
Beast Within
26% of 38 decks -11% synergy
Unbreakable Formation
21% of 38 decks +13% synergy
Chaos Warp
21% of 38 decks +3% synergy
Take Up the Shield
18% of 38 decks +18% synergy
Stroke of Midnight
16% of 31 decks +6% synergy
Silkguard
16% of 38 decks +14% synergy
Return to Nature
16% of 38 decks +11% synergy
Invigorating Surge
13% of 38 decks +12% synergy
Signal the Clans
13% of 38 decks +12% synergy
Abrade
13% of 38 decks +10% synergy
Silence
13% of 38 decks +9% synergy
Chord of Calling
13% of 38 decks +7% synergy
Mortal's Ardor
11% of 38 decks +10% synergy
Gaea's Gift
11% of 38 decks +9% synergy
Surge of Salvation
11% of 38 decks +9% synergy
Dromoka's Command
11% of 38 decks +8% synergy
Tamiyo's Safekeeping
11% of 38 decks +7% synergy
Veil of Summer
11% of 38 decks +7% synergy
Nature's Claim
11% of 38 decks +5% synergy
Deflecting Swat
11% of 38 decks -1% synergy
Flawless Maneuver
11% of 38 decks -3% synergy
Teferi's Protection
11% of 38 decks -8% synergy
Boros Charm
11% of 38 decks -18% synergy
Swift Justice
8% of 38 decks +8% synergy
Blessed Defiance
8% of 38 decks +8% synergy
Unbounded Potential
8% of 38 decks +8% synergy
Calamity's Wake
8% of 38 decks +7% synergy
Reprieve
8% of 38 decks +6% synergy
Valakut Awakening
8% of 38 decks +5% synergy
Congregation at Dawn
8% of 38 decks +4% synergy
Return of the Wildspeaker
8% of 38 decks -14% synergy
Sorceries
Three Visits
39% of 38 decks +10% synergy
Nature's Lore
37% of 38 decks -1% synergy
Farseek
37% of 38 decks -13% synergy
Requisition Raid
27% of 15 decks +21% synergy
Kodama's Reach
26% of 38 decks -9% synergy
Damning Verdict
24% of 38 decks +19% synergy
Rampant Growth
24% of 38 decks -16% synergy
Austere Command
16% of 38 decks +3% synergy
Angelfire Ignition
13% of 38 decks +13% synergy
Twinflame
13% of 38 decks +12% synergy
Rishkar's Expertise
13% of 38 decks -2% synergy
Time of Need
11% of 38 decks +10% synergy
Eldritch Evolution
11% of 38 decks +7% synergy
Visions of Dominance
8% of 38 decks +8% synergy
Thirsting Roots
8% of 38 decks +7% synergy
Gamble
8% of 38 decks +4% synergy
Idyllic Tutor
8% of 38 decks +4% synergy
Vandalblast
8% of 38 decks +2% synergy
Bala Ged Recovery
8% of 38 decks +1% synergy
Farewell
8% of 38 decks -2% synergy
Shamanic Revelation
8% of 38 decks -9% synergy
Utility Artifacts
Swiftfoot Boots
34% of 38 decks +9% synergy
The Ozolith
29% of 38 decks +24% synergy
Basilisk Collar
21% of 38 decks +16% synergy
The Great Henge
21% of 38 decks +7% synergy
Shadowspear
16% of 38 decks +13% synergy
Staff of Domination
13% of 38 decks +12% synergy
Lightning Greaves
13% of 38 decks -10% synergy
Agatha's Soul Cauldron
13% of 31 decks +12% synergy
Animation Module
11% of 38 decks +10% synergy
Enchantments
Innkeeper's Talent
44% of 9 decks +37% synergy
Stocking the Pantry
43% of 7 decks +39% synergy
Cathars' Crusade
39% of 38 decks +32% synergy
Uncivil Unrest
37% of 38 decks +31% synergy
Felidar Retreat
32% of 38 decks +12% synergy
Mayael's Aria
29% of 38 decks +24% synergy
Lifelink
26% of 38 decks +26% synergy
Court of Garenbrig
25% of 28 decks +22% synergy
Cleric Class
24% of 38 decks +23% synergy
Invigorating Hot Spring
24% of 38 decks +21% synergy
Light of Promise
18% of 38 decks +18% synergy
Swift Reconfiguration
18% of 38 decks +18% synergy
Keen Sense
18% of 38 decks +17% synergy
Spirit Link
16% of 38 decks +15% synergy
Rite of Passage
16% of 38 decks +14% synergy
Together Forever
16% of 38 decks +13% synergy
Tribute to the World Tree
16% of 38 decks +7% synergy
Snake Umbra
13% of 38 decks +10% synergy
Utopia Sprawl
13% of 38 decks +6% synergy
Sylvan Library
13% of 38 decks +2% synergy
Virtue of Loyalty
11% of 28 decks +8% synergy
Ajani's Welcome
11% of 38 decks +9% synergy
Sterling Grove
11% of 38 decks +7% synergy
Primal Vigor
11% of 38 decks +7% synergy
Impact Tremors
11% of 38 decks -4% synergy
Felidar Umbra
8% of 38 decks +7% synergy
Resourceful Defense
8% of 38 decks +7% synergy
Hydra's Growth
8% of 38 decks +7% synergy
Battles
Invasion of Ikoria
9% of 35 decks -0% synergy
Planeswalkers
Jiang Yanggu, Wildcrafter
11% of 38 decks +10% synergy
Ajani, the Greathearted
11% of 38 decks +7% synergy
Nissa, Voice of Zendikar
8% of 38 decks +7% synergy
Utility Lands
Gavony Township
53% of 38 decks +40% synergy
Karn's Bastion
39% of 38 decks +36% synergy
Mosswort Bridge
18% of 38 decks -0% synergy
Oran-Rief, the Vastwood
16% of 38 decks +14% synergy
Llanowar Reborn
16% of 38 decks +14% synergy
Yavimaya, Cradle of Growth
16% of 38 decks -3% synergy
Rogue's Passage
16% of 38 decks -11% synergy
Reliquary Tower
13% of 38 decks -4% synergy
Boseiju, Who Endures
11% of 38 decks -6% synergy
Drannith Ruins
9% of 35 decks +8% synergy
Witch's Clinic
8% of 38 decks +8% synergy
Nesting Grounds
8% of 38 decks +7% synergy
Field of Ruin
8% of 38 decks +6% synergy
Ancient Tomb
8% of 38 decks +1% synergy
Temple of the False God
8% of 38 decks -4% synergy
Kessig Wolf Run
8% of 38 decks -10% synergy
Mana Artifacts
Arcane Signet
82% of 38 decks +9% synergy
Sol Ring
76% of 38 decks -8% synergy
Fellwar Stone
24% of 38 decks +13% synergy
Commander's Sphere
21% of 38 decks +9% synergy
Selesnya Signet
18% of 38 decks +7% synergy
Talisman of Unity
13% of 38 decks +5% synergy
Boros Signet
13% of 38 decks +2% synergy
Gruul Signet
13% of 38 decks +1% synergy
Talisman of Impulse
11% of 38 decks +3% synergy
Talisman of Conviction
11% of 38 decks +3% synergy
Mana Crypt
8% of 38 decks +2% synergy
Lands
Command Tower
92% of 38 decks +1% synergy
Cinder Glade
61% of 38 decks +10% synergy
Canopy Vista
55% of 38 decks +6% synergy
Jungle Shrine
53% of 38 decks -4% synergy
Exotic Orchard
50% of 38 decks -2% synergy
Temple Garden
45% of 38 decks +2% synergy
Stomping Ground
45% of 38 decks +2% synergy
Jetmir's Garden
45% of 38 decks -1% synergy
Sungrass Prairie
34% of 38 decks +20% synergy
Arid Mesa
34% of 38 decks +7% synergy
Windswept Heath
34% of 38 decks +6% synergy
Path of Ancestry
34% of 38 decks +0% synergy
Sheltering Landscape
33% of 12 decks +8% synergy
Sacred Foundry
32% of 38 decks -7% synergy
Fortified Village
29% of 38 decks +10% synergy
Wooded Foothills
29% of 38 decks +2% synergy
Rootbound Crag
29% of 38 decks -3% synergy
Mossfire Valley
26% of 38 decks +15% synergy
Krosan Verge
26% of 38 decks +12% synergy
Game Trail
26% of 38 decks +8% synergy
Spectator Seating
26% of 38 decks -2% synergy
Sunpetal Grove
26% of 38 decks -6% synergy
Clifftop Retreat
26% of 38 decks -8% synergy
Elegant Parlor
25% of 16 decks +16% synergy
Commercial District
25% of 16 decks +14% synergy
Lush Portico
25% of 16 decks +13% synergy
Bretagard Stronghold
24% of 38 decks +22% synergy
Temple of Abandon
24% of 38 decks +10% synergy
Evolving Wilds
24% of 38 decks -7% synergy
Bountiful Promenade
24% of 38 decks -8% synergy
Furycalm Snarl
21% of 38 decks +8% synergy
Temple of Plenty
21% of 38 decks +7% synergy
Temple of Triumph
21% of 38 decks +6% synergy
Rockfall Vale
21% of 38 decks -6% synergy
Spire Garden
21% of 38 decks -9% synergy
Karplusan Forest
18% of 38 decks +2% synergy
Battlefield Forge
18% of 38 decks +0% synergy
Plateau
16% of 38 decks +5% synergy
Taiga
16% of 38 decks +5% synergy
Savannah
16% of 38 decks +5% synergy
Brushland
16% of 38 decks -0% synergy
Captivating Cave
15% of 20 decks +14% synergy
Opal Palace
13% of 38 decks +11% synergy
Marsh Flats
13% of 38 decks +7% synergy
City of Brass
13% of 38 decks +5% synergy
Scattered Groves
13% of 38 decks +4% synergy
Overgrown Farmland
13% of 38 decks -9% synergy
Sacred Peaks
11% of 38 decks +6% synergy
Ash Barrens
11% of 38 decks +6% synergy
Scalding Tarn
11% of 38 decks +5% synergy