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
5.83% of 1629 decks 95 decks
Jodah, Archmage Eternal
0.05% of 8077 decks 4 decks
Roon of the Hidden Realm
0.06% of 3134 decks 2 decks
Atraxa, Grand Unifier
0.01% of 14559 decks 2 decks
Reaper King
0.02% of 5806 decks 1 decks
Omnath, Locus of All
0.01% of 14716 decks 1 decks
New Cards
Willowrush Verge
7% of 14 decks +2% synergy
High Synergy Cards
Changeling Berserker
100% of 6 decks +100% synergy
Glorious Protector
90% of 105 decks +89% 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 105 decks +82% synergy
Fiend Hunter
82% of 105 decks +81% synergy
Rattleclaw Mystic
83% of 6 decks +80% synergy
Countersquall
75% of 8 decks +73% synergy
Lumbering Battlement
71% of 105 decks +71% synergy
Top Cards
Restoration Angel
73% of 105 decks +71% synergy
Soulherder
71% of 105 decks +67% synergy
Felidar Guardian
70% of 105 decks +67% synergy
Ephemerate
68% of 105 decks +62% synergy
Returned Pastcaller
67% of 6 decks +67% synergy
Revolutionist
67% of 6 decks +66% synergy
Coiling Oracle
65% of 105 decks +58% synergy
Faceless Butcher
62% of 8 decks +62% synergy
Possessed Skaab
62% of 8 decks +62% synergy
Diabolic Revelation
62% of 8 decks +62% synergy
Game Changers
Cyclonic Rift
8% of 105 decks -19% synergy
Rhystic Study
7% of 105 decks -20% synergy
Fierce Guardianship
6% of 105 decks -12% synergy
Smothering Tithe
6% of 105 decks -18% synergy
Creatures
Werefox Bodyguard
62% of 81 decks +61% synergy
Wormfang Drake
57% of 105 decks +57% synergy
Eternal Witness
55% of 105 decks +36% synergy
Farhaven Elf
50% of 105 decks +47% synergy
Mulldrifter
48% of 105 decks +42% synergy
Aether Channeler
46% of 105 decks +44% synergy
Peregrine Drake
46% of 105 decks +42% synergy
Elvish Visionary
43% of 105 decks +41% synergy
Suture Priest
43% of 105 decks +40% synergy
Dour Port-Mage
41% of 39 decks +39% synergy
Knight of Autumn
40% of 105 decks +38% synergy
Wood Elves
40% of 105 decks +34% synergy
Lonis, Cryptozoologist
38% of 105 decks +36% synergy
Reflector Mage
38% of 105 decks +36% synergy
Spirited Companion
38% of 105 decks +34% synergy
Cloudblazer
36% of 105 decks +33% synergy
Wall of Omens
34% of 105 decks +31% synergy
Mirror Image
33% of 105 decks +33% synergy
Charming Prince
33% of 105 decks +31% synergy
Karmic Guide
33% of 105 decks +29% synergy
Preston, the Vanisher
32% of 105 decks +31% synergy
Wall of Blossoms
32% of 105 decks +31% synergy
Reclamation Sage
32% of 105 decks +22% synergy
Archaeomancer
31% of 105 decks +28% synergy
Clifftop Lookout
31% of 42 decks +29% synergy
Champion of Lambholt
30% of 105 decks +24% synergy
Changeling Hero
30% of 105 decks +29% synergy
Risen Reef
29% of 105 decks +26% synergy
Sage's Row Denizen
28% of 105 decks +28% synergy
Venser, Shaper Savant
27% of 105 decks +25% synergy
Acidic Slime
26% of 105 decks +22% synergy
Elesh Norn, Mother of Machines
25% of 105 decks +21% synergy
Solemn Simulacrum
25% of 105 decks +11% synergy
Clone
24% of 105 decks +23% synergy
Flickerwisp
24% of 105 decks +22% synergy
Yorion, Sky Nomad
24% of 105 decks +22% synergy
Skyclave Apparition
24% of 105 decks +21% synergy
Thassa, Deep-Dwelling
23% of 105 decks +20% synergy
Radiant Solar
22% of 105 decks +21% synergy
Prosperous Innkeeper
22% of 105 decks +19% synergy
Soul of the Harvest
22% of 105 decks +19% synergy
Timeless Witness
21% of 105 decks +18% synergy
Glasspool Mimic
21% of 105 decks +18% synergy
Icewind Stalwart
20% of 105 decks +20% synergy
Emiel the Blessed
20% of 105 decks +17% synergy
Heronblade Elite
19% of 105 decks +18% synergy
Pond Prophet
19% of 42 decks +18% synergy
Displacer Kitten
19% of 105 decks +14% synergy
Sun Titan
18% of 105 decks +9% synergy
Soul Warden
17% of 105 decks +12% synergy
Instants
Cloudshift
55% of 105 decks +52% synergy
Momentary Blink
50% of 105 decks +47% synergy
Ghostly Flicker
50% of 105 decks +46% synergy
Swords to Plowshares
50% of 105 decks -12% synergy
Theoretical Duplication
36% of 105 decks +35% synergy
Eerie Interlude
35% of 105 decks +31% synergy
Negate
35% of 105 decks +13% synergy
Counterspell
35% of 105 decks -7% synergy
Essence Flux
34% of 105 decks +32% synergy
Beast Within
30% of 105 decks -8% synergy
Flicker of Fate
28% of 105 decks +26% synergy
Path to Exile
26% of 105 decks -21% synergy
Generous Gift
24% of 105 decks -1% synergy
Displace
23% of 105 decks +21% synergy
Lae'zel's Acrobatics
23% of 105 decks +21% synergy
Planar Incision
17% of 105 decks +16% synergy
An Offer You Can't Refuse
16% of 105 decks -5% synergy
Rite of Harmony
15% of 105 decks +13% synergy
Endless Detour
14% of 105 decks +13% synergy
Semester's End
14% of 105 decks +12% synergy
Eladamri's Call
14% of 105 decks +4% synergy
Dovin's Veto
14% of 105 decks -4% synergy
Worldly Tutor
13% of 105 decks -0% synergy
Ghostway
12% of 105 decks +11% synergy
Scrollshift
11% of 105 decks +11% synergy
Blur
11% of 105 decks +10% synergy
Teferi's Protection
10% of 105 decks -9% synergy
Arcane Denial
10% of 105 decks -10% synergy
Mystic Reflection
10% of 105 decks +8% synergy
Swan Song
10% of 105 decks -7% synergy
Cosmic Rebirth
9% of 97 decks +7% synergy
Turn to Mist
9% of 105 decks +8% synergy
Brokers Charm
9% of 105 decks +5% synergy
Shared Summons
8% of 105 decks +6% synergy
Teferi's Time Twist
8% of 105 decks +6% synergy
Reality Shift
8% of 105 decks -1% synergy
Memory Lapse
7% of 105 decks +5% synergy
Wash Away
7% of 105 decks +5% synergy
Mana Leak
7% of 105 decks +4% synergy
Dispel
7% of 105 decks +2% synergy
Chord of Calling
7% of 105 decks +1% synergy
Pongify
7% of 105 decks -5% synergy
Growth Spiral
7% of 105 decks -15% synergy
Stroke of Midnight
6% of 81 decks -4% synergy
Acrobatic Maneuver
6% of 105 decks +5% synergy
Spell Pierce
6% of 105 decks +2% synergy
Bant Charm
6% of 105 decks +1% synergy
Heroic Intervention
6% of 105 decks -24% synergy
Sorceries
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 +50% synergy
Farseek
33% of 105 decks -1% synergy
Rampant Growth
33% of 105 decks -1% synergy
Cultivate
32% of 105 decks -13% synergy
Kodama's Reach
21% of 105 decks -10% synergy
Nature's Lore
18% of 105 decks -14% synergy
Time Wipe
15% of 105 decks +9% synergy
Farewell
11% of 105 decks -1% synergy
Three Visits
10% of 105 decks -14% synergy
Another Round
10% of 50 decks +9% synergy
Starfall Invocation
10% of 42 decks +7% synergy
Bala Ged Recovery
9% of 105 decks +0% synergy
Austere Command
9% of 105 decks -4% synergy
Hallowed Respite
8% of 105 decks +7% synergy
Beck // Call
8% of 105 decks +7% synergy
Supreme Verdict
8% of 105 decks -6% synergy
Ecological Appreciation
7% of 105 decks +6% synergy
Cleansing Nova
7% of 105 decks +3% synergy
Neoform
7% of 105 decks +2% synergy
Bring to Light
6% of 105 decks +4% synergy
Utility Artifacts
Panharmonicon
46% of 105 decks +42% synergy
Altar of the Brood
38% of 105 decks +37% synergy
Conjurer's Closet
22% of 105 decks +20% synergy
Golden Argosy
10% of 105 decks +10% synergy
The Ozolith
10% of 105 decks +6% synergy
Commander's Sphere
9% of 105 decks -6% synergy
Mysterious Limousine
8% of 105 decks +7% synergy
Assimilation Aegis
6% of 50 decks +5% synergy
Enchantments
Candlekeep Sage
35% of 105 decks +35% synergy
Teleportation Circle
35% of 105 decks +32% synergy
Blessed Sanctuary
30% of 105 decks +29% synergy
Guardian Project
26% of 105 decks +17% synergy
Virtue of Knowledge
21% of 81 decks +19% synergy
Touch the Spirit Realm
21% of 105 decks +19% synergy
Oblivion Ring
17% of 105 decks +16% synergy
Aura Shards
16% of 105 decks +8% synergy
Season of Growth
15% of 105 decks +13% synergy
Detention Sphere
10% of 105 decks +10% synergy
Cathars' Crusade
10% of 105 decks +5% synergy
Extraordinary Journey
10% of 81 decks +10% synergy
Far Traveler
9% of 105 decks +8% synergy
Wild Growth
8% of 105 decks -3% synergy
Leyline of Anticipation
7% of 105 decks +2% synergy
Elemental Bond
7% of 105 decks +2% synergy
Resourceful Defense
6% of 105 decks +5% synergy
Grasp of Fate
6% of 105 decks +2% synergy
Planeswalkers
The Eternal Wanderer
9% of 105 decks +6% synergy
Utility Lands
Reliquary Tower
34% of 105 decks +5% synergy
Alchemist's Refuge
13% of 105 decks +7% synergy
Boseiju, Who Endures
12% of 105 decks -6% synergy
Otawara, Soaring City
11% of 105 decks -5% synergy
Eiganjo, Seat of the Empire
7% of 105 decks -1% synergy
Mystic Sanctuary
6% of 105 decks -6% synergy
Mana Artifacts
Arcane Signet
70% of 105 decks -2% synergy
Sol Ring
70% of 105 decks -15% synergy
Azorius Signet
27% of 105 decks +1% synergy
Simic Signet
25% of 105 decks +11% synergy
Decanter of Endless Water
17% of 105 decks +13% synergy
Selesnya Signet
17% of 105 decks +9% synergy
Fellwar Stone
17% of 105 decks -4% synergy
Thought Vessel
13% of 105 decks -4% synergy
Talisman of Curiosity
8% of 105 decks -5% synergy
Talisman of Unity
7% of 105 decks -1% synergy
Talisman of Progress
7% of 105 decks -18% synergy
Lands
Command Tower
88% of 105 decks +13% synergy
Exotic Orchard
56% of 105 decks +20% synergy
Seaside Citadel
55% of 105 decks +29% synergy
Canopy Vista
51% of 105 decks +15% synergy
Prairie Stream
49% of 105 decks +15% synergy
Spara's Headquarters
37% of 105 decks +7% synergy
Glacial Fortress
36% of 105 decks +9% synergy
Sunpetal Grove
32% of 105 decks +8% synergy
Hinterland Harbor
32% of 105 decks +3% synergy
Hallowed Fountain
32% of 105 decks -8% synergy
Brokers Hideout
31% of 105 decks +30% synergy
Rejuvenating Springs
30% of 105 decks +1% synergy
Temple Garden
30% of 105 decks -10% synergy
Evolving Wilds
29% of 105 decks +8% synergy
Breeding Pool
29% of 105 decks -12% synergy
Bountiful Promenade
27% of 105 decks +3% synergy
Windswept Heath
25% of 105 decks +14% synergy
Flooded Strand
25% of 105 decks +14% synergy
Misty Rainforest
24% of 105 decks +12% synergy
Dreamroot Cascade
24% of 105 decks +5% synergy
Sea of Clouds
24% of 105 decks -2% synergy
Path of Ancestry
23% of 105 decks +1% synergy
Yavimaya Coast
22% of 105 decks -5% synergy
Overgrown Farmland
21% of 105 decks +5% synergy
Deserted Beach
21% of 105 decks +5% synergy
Temple of Mystery
21% of 105 decks +3% synergy
Temple of Plenty
19% of 105 decks +6% synergy
Azorius Chancery
19% of 105 decks +4% synergy
Temple of Enlightenment
18% of 105 decks +1% synergy
Tranquil Landscape
18% of 45 decks +8% synergy
Selesnya Sanctuary
17% of 105 decks +3% synergy
Port Town
17% of 105 decks +2% synergy
Terramorphic Expanse
17% of 105 decks +1% synergy
Simic Growth Chamber
16% of 105 decks -3% synergy
Krosan Verge
15% of 105 decks +13% synergy
Branchloft Pathway
15% of 105 decks +7% synergy
Skycloud Expanse
15% of 105 decks +2% synergy
Sungrass Prairie
14% of 105 decks +2% synergy
Brushland
14% of 105 decks -3% synergy
Fortified Village
13% of 105 decks -2% synergy
Myriad Landscape
13% of 105 decks -5% synergy
Adarkar Wastes
13% of 105 decks -6% synergy
Fabled Passage
12% of 105 decks +3% synergy
Idyllic Beachfront
11% of 105 decks +9% synergy
Barkchannel Pathway
11% of 105 decks +3% synergy
Vineglimmer Snarl
11% of 105 decks +0% synergy
Lush Portico
11% of 63 decks +2% synergy
Hedge Maze
11% of 63 decks +0% synergy
Bant Panorama
10% of 105 decks +10% synergy
Radiant Grove
10% of 105 decks +5% synergy