Shalai and Hallar + Devoted Druid + Arcus Acolyte + Primal Vigor

Shalai and Hallar
Devoted Druid
Arcus Acolyte
Primal Vigor

Requires
Shalai and Hallar must be on the battlefield. Devoted Druid must be on the battlefield. Arcus Acolyte must be on the battlefield. Primal Vigor 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 g.
  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 g 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.

Top Commanders (2)
Shalai and Hallar
0.04% of 6858 decks 3 decks
Marath, Will of the Wild
0.04% of 2349 decks 1 decks
Top Cards (3)
Conclave Mentor
100% of 4 decks +94% synergy
Hardened Scales
100% of 4 decks +92% synergy
Kami of Whispered Hopes
100% of 4 decks +89% synergy
Creatures (50)
Elenda's Hierophant
100% of 1 decks +100% synergy
Ojer Axonil, Deepest Might
100% of 1 decks +99% synergy
Dauntless Dismantler
100% of 1 decks +97% synergy
Gyre Sage
75% of 4 decks +67% synergy
Delighted Halfling
67% of 3 decks +56% synergy
Ageless Entity
50% of 4 decks +50% synergy
Iridescent Hornbeetle
50% of 4 decks +50% synergy
Archangel of Thune
50% of 4 decks +49% synergy
Agatha of the Vile Cauldron
50% of 2 decks +49% synergy
War Elemental
50% of 4 decks +49% synergy
Ivy Lane Denizen
50% of 4 decks +48% synergy
Scurry Oak
50% of 4 decks +48% synergy
Walking Ballista
50% of 4 decks +48% synergy
Herd Baloth
50% of 4 decks +48% synergy
Heliod, Sun-Crowned
50% of 4 decks +47% synergy
Vigor
50% of 4 decks +47% synergy
Good-Fortune Unicorn
50% of 4 decks +46% synergy
The Red Terror
50% of 4 decks +46% synergy
Hamza, Guardian of Arashin
50% of 4 decks +46% synergy
Mikaeus, the Lunarch
50% of 4 decks +46% synergy
Halana and Alena, Partners
50% of 4 decks +45% synergy
Forgotten Ancient
50% of 4 decks +44% synergy
Incubation Druid
50% of 4 decks +41% synergy
Champion of Lambholt
50% of 4 decks +35% synergy
Rosie Cotton of South Lane
33% of 3 decks +28% synergy
Arwen, Weaver of Hope
33% of 3 decks +27% synergy
Aerie Ouphes
25% of 4 decks +25% synergy
Drillworks Mole
25% of 4 decks +25% synergy
Gideon's Avenger
25% of 4 decks +25% synergy
Gideon's Company
25% of 4 decks +25% synergy
Ollenbock Escort
25% of 4 decks +25% synergy
Twinblade Paladin
25% of 4 decks +25% synergy
Mayor of Avabruck
25% of 4 decks +25% synergy
Weaver of Blossoms
25% of 4 decks +25% synergy
Fearless Pup
25% of 4 decks +25% synergy
Hungry Ridgewolf
25% of 4 decks +25% synergy
Kitchen Finks
25% of 4 decks +25% synergy
Celestial Unicorn
25% of 4 decks +25% synergy
Ochre Jelly
25% of 4 decks +25% synergy
Serra Redeemer
25% of 4 decks +25% synergy
Tundra Wolves
25% of 4 decks +25% synergy
Basri's Lieutenant
25% of 4 decks +25% synergy
Young Wolf
25% of 4 decks +25% synergy
Victory's Envoy
25% of 4 decks +25% synergy
Voice of the Blessed
25% of 4 decks +25% synergy
Magus of the Order
25% of 4 decks +25% synergy
Marath, Will of the Wild
25% of 4 decks +25% synergy
Wolfir Silverheart
25% of 4 decks +25% synergy
Wandering Wolf
25% of 4 decks +25% synergy
Huntmaster of the Fells
25% of 4 decks +25% synergy
Instants (20)
Chord of Calling
50% of 4 decks +43% synergy
Inspiring Call
50% of 4 decks +40% synergy
Eladamri's Call
50% of 4 decks +37% synergy
Chaos Warp
50% of 4 decks +32% synergy
Path to Exile
50% of 4 decks +1% synergy
Stroke of Midnight
33% of 3 decks +22% synergy
Sure Strike
25% of 4 decks +25% synergy
Moonlight Hunt
25% of 4 decks +25% synergy
Summoner's Pact
25% of 4 decks +25% synergy
Snakeskin Veil
25% of 4 decks +23% synergy
Silkguard
25% of 4 decks +23% synergy
Abrade
25% of 4 decks +21% synergy
Silence
25% of 4 decks +21% synergy
Congregation at Dawn
25% of 4 decks +20% synergy
Enlightened Tutor
25% of 4 decks +12% synergy
Naya Charm
25% of 4 decks +11% synergy
Worldly Tutor
25% of 4 decks +10% synergy
Boros Charm
25% of 4 decks -6% synergy
Heroic Intervention
25% of 4 decks -13% synergy
Swords to Plowshares
25% of 4 decks -34% synergy
Sorceries (23)
Cultivate
75% of 4 decks +18% synergy
Three Visits
50% of 4 decks +20% synergy
Nature's Lore
50% of 4 decks +12% synergy
Rampant Growth
50% of 4 decks +9% synergy
Farseek
50% of 4 decks -1% synergy
Incremental Growth
25% of 4 decks +25% synergy
Nature's Way
25% of 4 decks +25% synergy
Smell Fear
25% of 4 decks +25% synergy
Open the Gates
25% of 4 decks +25% synergy
Visions of Dominance
25% of 4 decks +25% synergy
Heat Shimmer
25% of 4 decks +25% synergy
Primal Command
25% of 4 decks +24% synergy
Threats Undetected
25% of 4 decks +24% synergy
Thirsting Roots
25% of 4 decks +24% synergy
Twinflame
25% of 4 decks +24% synergy
Cabaretti Confluence
25% of 4 decks +23% synergy
Sylvan Scrying
25% of 4 decks +23% synergy
Gamble
25% of 4 decks +21% synergy
Eldritch Evolution
25% of 4 decks +21% synergy
Damning Verdict
25% of 4 decks +20% synergy
Finale of Devastation
25% of 4 decks +15% synergy
Skyshroud Claim
25% of 4 decks +12% synergy
Shamanic Revelation
25% of 4 decks +5% synergy
Utility Artifacts (8)
Ozolith, the Shattered Spire
75% of 4 decks +66% synergy
Agatha's Soul Cauldron
33% of 3 decks +32% synergy
Animation Module
25% of 4 decks +25% synergy
Umbral Mantle
25% of 4 decks +25% synergy
Darksteel Plate
25% of 4 decks +24% synergy
Shadowspear
25% of 4 decks +23% synergy
The Ozolith
25% of 4 decks +20% synergy
Ashnod's Altar
25% of 4 decks +18% synergy
Enchantments (23)
Uncivil Unrest
75% of 4 decks +67% synergy
All Will Be One
75% of 4 decks +66% synergy
Rhythm of the Wild
75% of 4 decks +41% synergy
Court of Garenbrig
67% of 3 decks +63% synergy
Invigorating Hot Spring
50% of 4 decks +47% synergy
Cathars' Crusade
50% of 4 decks +41% synergy
Virtue of Loyalty
33% of 3 decks +30% synergy
Pandemonium
25% of 4 decks +25% synergy
Lifelink
25% of 4 decks +25% synergy
Light of Promise
25% of 4 decks +25% synergy
Presence of Gond
25% of 4 decks +25% synergy
Sigarda's Summons
25% of 4 decks +24% synergy
Cleric Class
25% of 4 decks +24% synergy
Swift Reconfiguration
25% of 4 decks +24% synergy
Feed the Pack
25% of 4 decks +24% synergy
Wolfcaller's Howl
25% of 4 decks +24% synergy
Rite of Passage
25% of 4 decks +23% synergy
Cabaretti Ascendancy
25% of 4 decks +22% synergy
Defense of the Heart
25% of 4 decks +22% synergy
Branching Evolution
25% of 4 decks +21% synergy
Tribute to the World Tree
25% of 4 decks +14% synergy
Sylvan Library
25% of 4 decks +12% synergy
Felidar Retreat
25% of 4 decks +4% synergy
Battles (1)
Invasion of Ikoria
25% of 4 decks +14% synergy
Planeswalkers (1)
Arlinn Kord
25% of 4 decks +24% synergy
Utility Lands (5)
Contested Cliffs
25% of 4 decks +23% synergy
Karn's Bastion
25% of 4 decks +22% synergy
Gaea's Cradle
25% of 4 decks +19% synergy
Gavony Township
25% of 4 decks +12% synergy
Boseiju, Who Endures
25% of 4 decks +8% synergy
Mana Artifacts (7)
Arcane Signet
75% of 4 decks +4% synergy
Sol Ring
75% of 4 decks -9% synergy
Boros Signet
50% of 4 decks +37% synergy
Selesnya Signet
50% of 4 decks +37% synergy
Gruul Signet
50% of 4 decks +35% synergy
Mana Crypt
25% of 4 decks +17% synergy
Fellwar Stone
25% of 4 decks +14% synergy
Lands (34)
Command Tower
75% of 4 decks -15% synergy
Mossfire Valley
50% of 4 decks +39% synergy
Sungrass Prairie
50% of 4 decks +36% synergy
Wooded Foothills
50% of 4 decks +25% synergy
Windswept Heath
50% of 4 decks +24% synergy
Arid Mesa
50% of 4 decks +22% synergy
Spectator Seating
50% of 4 decks +21% synergy
Path of Ancestry
50% of 4 decks +18% synergy
Sacred Foundry
50% of 4 decks +10% synergy
Temple Garden
50% of 4 decks +6% synergy
Stomping Ground
50% of 4 decks +5% synergy
Tranquil Expanse
25% of 4 decks +24% synergy
Bretagard Stronghold
25% of 4 decks +23% synergy
Ash Barrens
25% of 4 decks +20% synergy
Rugged Highlands
25% of 4 decks +18% synergy
Sheltered Thicket
25% of 4 decks +18% synergy
Rugged Prairie
25% of 4 decks +18% synergy
Scattered Groves
25% of 4 decks +17% synergy
Mana Confluence
25% of 4 decks +17% synergy
City of Brass
25% of 4 decks +17% synergy
Temple of Abandon
25% of 4 decks +12% synergy
Temple of Plenty
25% of 4 decks +11% synergy
Temple of Triumph
25% of 4 decks +10% synergy
Krosan Verge
25% of 4 decks +8% synergy
Battlefield Forge
25% of 4 decks +8% synergy
Terramorphic Expanse
25% of 4 decks +1% synergy
Spire Garden
25% of 4 decks -5% synergy
Bountiful Promenade
25% of 4 decks -7% synergy
Evolving Wilds
25% of 4 decks -7% synergy
Canopy Vista
25% of 4 decks -24% synergy
Jetmir's Garden
25% of 4 decks -24% synergy
Cinder Glade
25% of 4 decks -25% synergy
Exotic Orchard
25% of 4 decks -26% synergy
Jungle Shrine
25% of 4 decks -32% synergy