Lagrella, the Magpie + Yannik, Scavenging Sentinel + Phantom Steed

Lagrella, the Magpie
Yannik, Scavenging Sentinel
Phantom Steed

Requires
Lagrella, the Magpie must be in hand, or in the command zone. Yannik, Scavenging Sentinel must be in exile (exiled by Phantom Steed). Phantom Steed must be on the battlefield. Mana needed: plus enough mana to pay for commander tax, if applicable
Steps
  1. Cast Lagrella by paying and commander tax, if applicable.
  2. Lagrella enters the battlefield, exiling Phantom Steed.
  3. Phantom Steed leaves the battlefield, causing Yannik to be returned to the battlefield from exile.
  4. Yannik enters the battlefield, exiling Lagrella and distributing two +1/+1 counters among any number of target creatures.
  5. If Lagrella is your commander, choose not to return it to the command zone.
  6. Lagrella leaves the battlefield, causing Phantom Steed to be returned to the battlefield from exile with two +1/+1 counters on it.
  7. Phantom Steed enters the battlefield, exiling Yannik.
  8. Yannik leaves the battlefield, causing Lagrella to be returned to the battlefield from exile.
  9. Repeat from step 2.
Results
Infinite +1/+1 counters. Infinite ETB. Infinite LTB.

Lagrella, the Magpie
7.07% of 1599 decks 113 decks
Jodah, Archmage Eternal
0.05% of 8074 decks 4 decks
Roon of the Hidden Realm
0.06% of 3233 decks 2 decks
Atraxa, Grand Unifier
0.01% of 14209 decks 2 decks
Omnath, Locus of All
0.01% of 12969 decks 1 decks
Reaper King
0.02% of 5423 decks 1 decks
Tocasia, Dig Site Mentor
0.08% of 1233 decks 1 decks
High Synergy Cards
Changeling Berserker
100% of 6 decks +100% synergy
Dour Port-Mage
100% of 6 decks +94% synergy
Glorious Protector
91% of 124 decks +90% synergy
Izzet Chronarch
83% of 6 decks +83% synergy
Invert // Invent
83% of 6 decks +83% synergy
Ardent Elementalist
83% of 6 decks +83% synergy
Abdel Adrian, Gorion's Ward
83% of 123 decks +82% synergy
Rattleclaw Mystic
83% of 6 decks +80% synergy
Fiend Hunter
80% of 124 decks +79% synergy
Werefox Bodyguard
76% of 50 decks +75% synergy
Top Cards
Restoration Angel
77% of 124 decks +74% synergy
Countersquall
75% of 8 decks +73% synergy
Soulherder
73% of 124 decks +68% synergy
Felidar Guardian
72% of 124 decks +69% synergy
Lumbering Battlement
71% of 124 decks +71% synergy
Ephemerate
71% of 124 decks +65% synergy
Coiling Oracle
68% of 124 decks +60% synergy
Returned Pastcaller
67% of 6 decks +67% synergy
Revolutionist
67% of 6 decks +66% synergy
Faceless Butcher
62% of 8 decks +62% synergy
Creatures
Possessed Skaab
62% of 8 decks +62% synergy
Wormfang Drake
57% of 124 decks +57% synergy
Eternal Witness
57% of 124 decks +36% synergy
Clifftop Lookout
56% of 9 decks +52% synergy
Aether Channeler
54% of 114 decks +51% synergy
Farhaven Elf
52% of 124 decks +49% synergy
Mulldrifter
52% of 124 decks +46% synergy
Peregrine Drake
49% of 124 decks +46% synergy
Preston, the Vanisher
46% of 93 decks +45% synergy
Elvish Visionary
44% of 124 decks +41% synergy
Suture Priest
44% of 124 decks +40% synergy
Wood Elves
44% of 124 decks +37% synergy
Cloudblazer
42% of 124 decks +39% synergy
Lonis, Cryptozoologist
40% of 124 decks +39% synergy
Spirited Companion
40% of 124 decks +36% synergy
Pond Prophet
40% of 10 decks +36% synergy
Reflector Mage
40% of 124 decks +38% synergy
Reclamation Sage
40% of 124 decks +29% synergy
Knight of Autumn
39% of 124 decks +36% synergy
Wall of Omens
38% of 124 decks +35% synergy
Archaeomancer
36% of 124 decks +33% synergy
Elesh Norn, Mother of Machines
35% of 82 decks +30% synergy
Wall of Blossoms
35% of 124 decks +33% synergy
Venser, Shaper Savant
35% of 124 decks +33% synergy
Risen Reef
35% of 124 decks +31% synergy
Charming Prince
34% of 124 decks +32% synergy
Karmic Guide
34% of 124 decks +29% synergy
Mirror Image
31% of 124 decks +30% synergy
Champion of Lambholt
31% of 124 decks +24% synergy
Flickerwisp
28% of 124 decks +26% synergy
Acidic Slime
28% of 124 decks +24% synergy
Skyclave Apparition
27% of 124 decks +24% synergy
Changeling Hero
27% of 124 decks +26% synergy
Timeless Witness
27% of 124 decks +24% synergy
Sage's Row Denizen
25% of 124 decks +25% synergy
Soul of the Harvest
25% of 124 decks +22% synergy
Yorion, Sky Nomad
24% of 124 decks +22% synergy
Thassa, Deep-Dwelling
24% of 124 decks +21% synergy
Radiant Solar
23% of 124 decks +23% synergy
Emiel the Blessed
23% of 124 decks +20% synergy
Solemn Simulacrum
23% of 124 decks +9% synergy
Loran of the Third Path
23% of 101 decks +16% synergy
Clone
23% of 124 decks +21% synergy
Topiary Stomper
23% of 124 decks +19% synergy
Prosperous Innkeeper
22% of 124 decks +19% synergy
Glasspool Mimic
22% of 124 decks +19% synergy
Thragtusk
20% of 124 decks +19% synergy
Sun Titan
20% of 124 decks +10% synergy
Displacer Kitten
20% of 123 decks +14% synergy
Hydroelectric Specimen
19% of 16 decks +12% synergy
Instants
Cloudshift
57% of 124 decks +54% synergy
Momentary Blink
52% of 124 decks +49% synergy
Swords to Plowshares
52% of 124 decks -11% synergy
Ghostly Flicker
48% of 124 decks +43% synergy
Theoretical Duplication
39% of 124 decks +38% synergy
Negate
38% of 124 decks +15% synergy
Essence Flux
37% of 124 decks +35% synergy
Eerie Interlude
37% of 124 decks +33% synergy
Counterspell
35% of 124 decks -8% synergy
Beast Within
30% of 124 decks -9% synergy
Lae'zel's Acrobatics
28% of 123 decks +27% synergy
Flicker of Fate
25% of 124 decks +24% synergy
Path to Exile
23% of 124 decks -23% synergy
Displace
21% of 124 decks +19% synergy
Generous Gift
21% of 124 decks -5% synergy
Scrollshift
18% of 60 decks +18% synergy
Planar Incision
18% of 124 decks +16% synergy
Semester's End
17% of 124 decks +15% synergy
Eladamri's Call
17% of 124 decks +6% synergy
Cosmic Rebirth
16% of 58 decks +13% synergy
Rite of Harmony
15% of 124 decks +12% synergy
Worldly Tutor
15% of 124 decks +1% synergy
Dovin's Veto
15% of 124 decks -4% synergy
Teferi's Protection
15% of 124 decks -6% synergy
An Offer You Can't Refuse
15% of 124 decks -6% synergy
Ghostway
11% of 124 decks +10% synergy
Blur
11% of 123 decks +9% synergy
Mystic Reflection
10% of 124 decks +9% synergy
Turn to Mist
10% of 124 decks +9% synergy
Endless Detour
10% of 124 decks +8% synergy
Swan Song
10% of 124 decks -7% synergy
Teferi's Time Twist
9% of 124 decks +8% synergy
Cyclonic Rift
9% of 124 decks -19% synergy
Brokers Charm
8% of 124 decks +4% synergy
Nature's Claim
8% of 124 decks -2% synergy
Heroic Intervention
8% of 124 decks -22% synergy
Acrobatic Maneuver
7% of 124 decks +7% synergy
Wash Away
7% of 124 decks +6% synergy
Arcane Denial
7% of 124 decks -12% synergy
Justiciar's Portal
6% of 124 decks +6% synergy
Memory Lapse
6% of 124 decks +5% synergy
Cosmic Intervention
6% of 124 decks +5% synergy
Reality Shift
6% of 124 decks -3% synergy
Pongify
6% of 124 decks -5% synergy
Fierce Guardianship
6% of 124 decks -12% synergy
Growth Spiral
6% of 124 decks -15% synergy
Stroke of Midnight
6% of 52 decks -7% synergy
Shared Summons
6% of 124 decks +4% synergy
Disorder in the Court
6% of 124 decks +4% synergy
Dispel
6% of 124 decks +1% synergy
Sorceries
Diabolic Revelation
62% of 8 decks +62% synergy
Razaketh's Rite
62% of 8 decks +62% synergy
Diabolic Tutor
62% of 8 decks +56% synergy
Illicit Shipment
50% of 8 decks +50% synergy
Coveted Prize
50% of 8 decks +49% synergy
Rampant Growth
35% of 124 decks -0% synergy
Farseek
33% of 124 decks -1% synergy
Cultivate
29% of 124 decks -17% synergy
Kodama's Reach
19% of 124 decks -12% synergy
Nature's Lore
19% of 124 decks -13% synergy
Another Round
19% of 21 decks +17% synergy
Time Wipe
16% of 124 decks +9% synergy
Farewell
16% of 124 decks +3% synergy
Austere Command
13% of 124 decks +0% synergy
Three Visits
13% of 124 decks -12% synergy
Cleansing Nova
10% of 124 decks +6% synergy
Bala Ged Recovery
9% of 124 decks -0% synergy
Supreme Verdict
8% of 124 decks -6% synergy
Hallowed Respite
6% of 124 decks +6% synergy
Neoform
6% of 124 decks +1% synergy
Ecological Appreciation
6% of 124 decks +5% synergy
Beck // Call
6% of 124 decks +5% synergy
Against All Odds
5% of 73 decks +5% synergy
Utility Artifacts
Panharmonicon
48% of 124 decks +43% synergy
Altar of the Brood
35% of 124 decks +34% synergy
Conjurer's Closet
19% of 124 decks +17% synergy
Golden Argosy
12% of 114 decks +12% synergy
The Ozolith
10% of 124 decks +6% synergy
Mysterious Limousine
7% of 124 decks +7% synergy
Sword of Hearth and Home
7% of 124 decks +5% synergy
The Great Henge
6% of 124 decks -4% synergy
Enchantments
Teleportation Circle
44% of 124 decks +40% synergy
Candlekeep Sage
33% of 123 decks +33% synergy
Virtue of Knowledge
31% of 52 decks +28% synergy
Guardian Project
27% of 124 decks +19% synergy
Blessed Sanctuary
27% of 124 decks +26% synergy
Touch the Spirit Realm
20% of 124 decks +18% synergy
Aura Shards
17% of 124 decks +8% synergy
Oblivion Ring
14% of 124 decks +12% synergy
Extraordinary Journey
12% of 40 decks +12% synergy
Season of Growth
10% of 124 decks +8% synergy
Cathars' Crusade
10% of 124 decks +4% synergy
Far Traveler
8% of 123 decks +7% synergy
Detention Sphere
7% of 124 decks +6% synergy
Leyline of Anticipation
7% of 124 decks +3% synergy
Wild Growth
7% of 124 decks -4% synergy
Elemental Bond
6% of 124 decks +1% synergy
Rhystic Study
6% of 124 decks -21% synergy
Smothering Tithe
6% of 124 decks -19% synergy
Battles
Invasion of Arcavios
6% of 65 decks +6% synergy
Planeswalkers
The Eternal Wanderer
14% of 77 decks +11% synergy
Venser, the Sojourner
6% of 124 decks +4% synergy
Utility Lands
Reliquary Tower
33% of 124 decks +4% synergy
Boseiju, Who Endures
15% of 124 decks -4% synergy
Alchemist's Refuge
14% of 124 decks +7% synergy
Otawara, Soaring City
14% of 124 decks -3% synergy
Eiganjo, Seat of the Empire
7% of 124 decks -2% synergy
Mystic Sanctuary
6% of 124 decks -6% synergy
Yavimaya, Cradle of Growth
6% of 124 decks -4% synergy
Mana Artifacts
Sol Ring
69% of 124 decks -15% synergy
Arcane Signet
66% of 124 decks -6% synergy
Azorius Signet
26% of 124 decks -0% synergy
Simic Signet
23% of 124 decks +9% synergy
Selesnya Signet
19% of 124 decks +10% synergy
Decanter of Endless Water
15% of 123 decks +11% synergy
Fellwar Stone
15% of 124 decks -6% synergy
Thought Vessel
15% of 124 decks -2% synergy
Talisman of Curiosity
9% of 124 decks -3% synergy
Talisman of Unity
8% of 124 decks +1% synergy
Talisman of Progress
8% of 124 decks -15% synergy
Commander's Sphere
7% of 124 decks -8% synergy
Lands
Command Tower
88% of 124 decks +14% synergy
Exotic Orchard
58% of 124 decks +23% synergy
Seaside Citadel
56% of 124 decks +30% synergy
Canopy Vista
51% of 124 decks +15% synergy
Prairie Stream
48% of 124 decks +15% synergy
Spara's Headquarters
40% of 124 decks +8% synergy
Brokers Hideout
33% of 124 decks +32% synergy
Hallowed Fountain
32% of 124 decks -9% synergy
Evolving Wilds
31% of 124 decks +10% synergy
Tranquil Landscape
31% of 16 decks +14% synergy
Glacial Fortress
29% of 124 decks +4% synergy
Yavimaya Coast
29% of 124 decks +3% synergy
Hinterland Harbor
29% of 124 decks +2% synergy
Rejuvenating Springs
29% of 124 decks +0% synergy
Sunpetal Grove
27% of 124 decks +4% synergy
Temple Garden
27% of 124 decks -13% synergy
Breeding Pool
26% of 124 decks -15% synergy
Bountiful Promenade
25% of 124 decks +1% synergy
Windswept Heath
24% of 124 decks +14% synergy
Sea of Clouds
24% of 124 decks -2% synergy
Azorius Chancery
23% of 124 decks +8% synergy
Temple of Mystery
23% of 124 decks +5% synergy
Misty Rainforest
22% of 124 decks +10% synergy
Path of Ancestry
22% of 124 decks +1% synergy
Flooded Strand
21% of 124 decks +10% synergy
Deserted Beach
21% of 124 decks +5% synergy
Selesnya Sanctuary
20% of 124 decks +6% synergy
Temple of Enlightenment
20% of 124 decks +4% synergy
Temple of Plenty
19% of 124 decks +6% synergy
Terramorphic Expanse
19% of 124 decks +4% synergy
Overgrown Farmland
19% of 124 decks +3% synergy
Simic Growth Chamber
19% of 124 decks -0% synergy
Skycloud Expanse
18% of 124 decks +5% synergy
Brushland
18% of 124 decks +2% synergy
Dreamroot Cascade
18% of 124 decks -1% synergy
Myriad Landscape
18% of 124 decks -2% synergy
Krosan Verge
17% of 124 decks +14% synergy
Port Town
17% of 124 decks +1% synergy
Idyllic Beachfront
17% of 114 decks +13% synergy
Adarkar Wastes
16% of 124 decks -1% synergy
Tangled Islet
16% of 114 decks +8% synergy
Branchloft Pathway
15% of 124 decks +7% synergy
Sungrass Prairie
15% of 124 decks +3% synergy
Radiant Grove
15% of 114 decks +9% synergy
Meticulous Archive
15% of 27 decks +4% synergy
Lush Portico
15% of 27 decks +3% synergy
Hedge Maze
15% of 27 decks +1% synergy
Hengegate Pathway
14% of 124 decks +6% synergy
Fabled Passage
14% of 124 decks +5% synergy
Bant Panorama
13% of 124 decks +12% synergy