Lagrella, the Magpie + Karmic Guide + Phyrexian Altar

Lagrella, the Magpie
Karmic Guide
Phyrexian Altar

Requires
Lagrella, the Magpie must be in hand, or in the command zone. Karmic Guide must be on the battlefield. Phyrexian Altar 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. When Lagrella enters the battlefield, it triggers, exiling Karmic Guide until Lagrella leaves the battlefield.
  3. Activate Phyrexian Altar by sacrificing Lagrella, adding one mana of any color.
  4. If Lagrella is your commander, choose not to return it to the command zone from your graveyard.
  5. When Lagrella leaves the battlefield, Karmic Guide is returned to the battlefield from exile.
  6. When Karmic Guide enters the battlefield, it and Lagrella triggers.
  7. Resolve the Lagrella trigger, putting two +1/+1 counters on Karmic Guide.
  8. Resolve the Karmic Guide trigger, returning Lagrella from your graveyard to the battlefield.
  9. Repeat from step 2.
Results
Infinite colored mana. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

Lagrella, the Magpie
0.81% of 1610 decks 13 decks
Atraxa, Grand Unifier
0.01% of 14693 decks 2 decks
Chulane, Teller of Tales
0.03% of 7391 decks 2 decks
Omnath, Locus of Creation
0.01% of 13678 decks 2 decks
Katilda and Lier
0.05% of 2163 decks 1 decks
Kenrith, the Returned King
0.00% of 21799 decks 1 decks
Roon of the Hidden Realm
0.03% of 3192 decks 1 decks
Aragorn, the Uniter
0.01% of 17146 decks 1 decks
High Synergy Cards
Ephemerate
65% of 23 decks +59% synergy
Coiling Oracle
65% of 23 decks +58% synergy
Sun Titan
65% of 23 decks +55% synergy
Reveillark
57% of 23 decks +55% synergy
Felidar Guardian
57% of 23 decks +54% synergy
Emiel the Blessed
52% of 23 decks +49% synergy
Cloudshift
48% of 23 decks +45% synergy
Eternal Witness
65% of 23 decks +44% synergy
Abdel Adrian, Gorion's Ward
45% of 22 decks +44% synergy
Panharmonicon
48% of 23 decks +44% synergy
Top Cards
Swords to Plowshares
70% of 23 decks +7% synergy
Birds of Paradise
61% of 23 decks +34% synergy
Elesh Norn, Mother of Machines
47% of 19 decks +42% synergy
Thassa, Deep-Dwelling
43% of 23 decks +40% synergy
Peregrine Drake
43% of 23 decks +40% synergy
Guardian Project
43% of 23 decks +35% synergy
Worldly Tutor
43% of 23 decks +29% synergy
Noble Hierarch
43% of 23 decks +27% synergy
Rhystic Study
43% of 23 decks +16% synergy
Delighted Halfling
42% of 12 decks +28% synergy
Creatures
Dockside Extortionist
75% of 4 decks +63% synergy
Mulldrifter
39% of 23 decks +33% synergy
Fiend Hunter
35% of 23 decks +33% synergy
Charming Prince
35% of 23 decks +33% synergy
Soulherder
35% of 23 decks +30% synergy
Wood Elves
35% of 23 decks +28% synergy
Avacyn's Pilgrim
35% of 23 decks +20% synergy
Llanowar Elves
35% of 23 decks +14% synergy
Displacer Kitten
32% of 22 decks +26% synergy
Agent of Treachery
30% of 23 decks +28% synergy
Deadeye Navigator
30% of 23 decks +28% synergy
Restoration Angel
30% of 23 decks +28% synergy
Skyclave Apparition
30% of 23 decks +27% synergy
Aether Channeler
30% of 20 decks +28% synergy
Flickerwisp
26% of 23 decks +24% synergy
Yorion, Sky Nomad
26% of 23 decks +24% synergy
Recruiter of the Guard
26% of 23 decks +23% synergy
Spirited Companion
26% of 23 decks +22% synergy
Reclamation Sage
26% of 23 decks +15% synergy
Solemn Simulacrum
26% of 23 decks +12% synergy
Eldrazi Displacer
22% of 23 decks +20% synergy
Venser, Shaper Savant
22% of 23 decks +20% synergy
Elvish Visionary
22% of 23 decks +20% synergy
Cloudblazer
22% of 23 decks +19% synergy
Spellseeker
22% of 23 decks +18% synergy
Bloom Tender
22% of 23 decks +14% synergy
Esper Sentinel
22% of 23 decks +1% synergy
Preston, the Vanisher
21% of 19 decks +20% synergy
Saffi Eriksdotter
17% of 23 decks +16% synergy
Reflector Mage
17% of 23 decks +16% synergy
Knight of Autumn
17% of 23 decks +15% synergy
Archaeomancer
17% of 23 decks +14% synergy
Fyndhorn Elves
17% of 23 decks +4% synergy
Loran of the Third Path
16% of 19 decks +9% synergy
Archivist of Oghma
14% of 22 decks +8% synergy
Phantom Steed
13% of 23 decks +13% synergy
Spike Feeder
13% of 23 decks +13% synergy
Renegade Rallier
13% of 23 decks +13% synergy
Prime Speaker Vannifar
13% of 23 decks +12% synergy
Malevolent Hermit
13% of 23 decks +12% synergy
Lonis, Cryptozoologist
13% of 23 decks +11% synergy
Solitude
13% of 23 decks +11% synergy
Glen Elendra Archmage
13% of 23 decks +11% synergy
Timeless Witness
13% of 23 decks +10% synergy
Wall of Omens
13% of 23 decks +10% synergy
Glasspool Mimic
13% of 23 decks +10% synergy
Temur Sabertooth
13% of 23 decks +9% synergy
Topiary Stomper
13% of 23 decks +9% synergy
Farhaven Elf
13% of 23 decks +9% synergy
Acidic Slime
13% of 23 decks +9% synergy
Instants
Ghostly Flicker
39% of 23 decks +34% synergy
Cyclonic Rift
39% of 23 decks +11% synergy
Essence Flux
35% of 23 decks +33% synergy
Chord of Calling
35% of 23 decks +29% synergy
Path to Exile
35% of 23 decks -11% synergy
Mystical Tutor
30% of 23 decks +15% synergy
Enlightened Tutor
30% of 23 decks +13% synergy
An Offer You Can't Refuse
30% of 23 decks +9% synergy
Slip On the Ring
27% of 11 decks +26% synergy
Momentary Blink
26% of 23 decks +23% synergy
Eerie Interlude
26% of 23 decks +22% synergy
Dovin's Veto
26% of 23 decks +7% synergy
Brainstorm
26% of 23 decks +5% synergy
Counterspell
26% of 23 decks -17% synergy
Eladamri's Call
22% of 23 decks +11% synergy
Arcane Denial
22% of 23 decks +2% synergy
Heroic Intervention
22% of 23 decks -8% synergy
Beast Within
22% of 23 decks -17% synergy
Noxious Revival
17% of 23 decks +12% synergy
Force of Negation
17% of 23 decks +8% synergy
Force of Will
17% of 23 decks +6% synergy
Fierce Guardianship
17% of 23 decks -1% synergy
Generous Gift
17% of 23 decks -8% synergy
Flicker of Fate
13% of 23 decks +12% synergy
Semester's End
13% of 23 decks +11% synergy
Mental Misstep
13% of 23 decks +7% synergy
Nature's Claim
13% of 23 decks +4% synergy
Frantic Search
13% of 23 decks +1% synergy
Sorceries
Farewell
30% of 23 decks +17% synergy
Eldritch Evolution
26% of 23 decks +21% synergy
Neoform
22% of 23 decks +17% synergy
Green Sun's Zenith
22% of 23 decks +16% synergy
Farseek
22% of 23 decks -12% synergy
Sevinne's Reclamation
17% of 23 decks +10% synergy
Finale of Devastation
17% of 23 decks +9% synergy
Three Visits
17% of 23 decks -7% synergy
Kodama's Reach
17% of 23 decks -14% synergy
Nature's Lore
17% of 23 decks -15% synergy
Cultivate
17% of 23 decks -29% synergy
Wargate
13% of 23 decks +10% synergy
Gitaxian Probe
13% of 23 decks +7% synergy
Preordain
13% of 23 decks +2% synergy
Supreme Verdict
13% of 23 decks -1% synergy
Rampant Growth
13% of 23 decks -22% synergy
Utility Artifacts
Ashnod's Altar
39% of 23 decks +32% synergy
Altar of Dementia
35% of 23 decks +32% synergy
Birthing Pod
30% of 23 decks +28% synergy
Blasting Station
22% of 23 decks +21% synergy
Altar of the Brood
13% of 23 decks +12% synergy
Sword of Hearth and Home
13% of 23 decks +11% synergy
Sensei's Divining Top
13% of 23 decks +8% synergy
Swiftfoot Boots
13% of 23 decks -15% synergy
Enchantments
Sylvan Library
39% of 23 decks +27% synergy
Teleportation Circle
30% of 23 decks +27% synergy
Aura Shards
26% of 23 decks +17% synergy
Mystic Remora
26% of 23 decks +8% synergy
Smothering Tithe
26% of 23 decks +1% synergy
Carpet of Flowers
22% of 23 decks +18% synergy
Wild Growth
22% of 23 decks +11% synergy
Candlekeep Sage
14% of 22 decks +13% synergy
Survival of the Fittest
13% of 23 decks +11% synergy
Leyline of Anticipation
13% of 23 decks +9% synergy
Battles
Invasion of Ikoria
23% of 13 decks +18% synergy
Planeswalkers
The Eternal Wanderer
22% of 18 decks +19% synergy
Utility Lands
Ancient Tomb
35% of 23 decks +24% synergy
Otawara, Soaring City
35% of 23 decks +18% synergy
Yavimaya, Cradle of Growth
26% of 23 decks +17% synergy
Reliquary Tower
26% of 23 decks -3% synergy
Boseiju, Who Endures
22% of 23 decks +2% synergy
Eiganjo, Seat of the Empire
17% of 23 decks +8% synergy
Alchemist's Refuge
13% of 23 decks +6% synergy
Mana Artifacts
Sol Ring
83% of 23 decks -2% synergy
Arcane Signet
52% of 23 decks -20% synergy
Mana Crypt
30% of 23 decks +22% synergy
Fellwar Stone
22% of 23 decks +1% synergy
Chrome Mox
17% of 23 decks +11% synergy
Talisman of Unity
17% of 23 decks +10% synergy
Mox Diamond
13% of 23 decks +9% synergy
Lotus Petal
13% of 23 decks +6% synergy
Talisman of Curiosity
13% of 23 decks +1% synergy
Simic Signet
13% of 23 decks -1% synergy
Thought Vessel
13% of 23 decks -4% synergy
Lands
Command Tower
91% of 23 decks +17% synergy
Hallowed Fountain
70% of 23 decks +29% synergy
Flooded Strand
65% of 23 decks +55% synergy
Misty Rainforest
61% of 23 decks +49% synergy
Exotic Orchard
61% of 23 decks +25% synergy
Breeding Pool
61% of 23 decks +20% synergy
Lush Portico
60% of 5 decks +48% synergy
Windswept Heath
57% of 23 decks +46% synergy
Spara's Headquarters
57% of 23 decks +25% synergy
Temple Garden
57% of 23 decks +16% synergy
Wooded Foothills
35% of 23 decks +25% synergy
Rejuvenating Springs
35% of 23 decks +6% synergy
Mana Confluence
30% of 23 decks +23% synergy
City of Brass
30% of 23 decks +22% synergy
Arid Mesa
30% of 23 decks +20% synergy
Scalding Tarn
30% of 23 decks +19% synergy
Marsh Flats
30% of 23 decks +19% synergy
Verdant Catacombs
30% of 23 decks +19% synergy
Yavimaya Coast
30% of 23 decks +4% synergy
Canopy Vista
30% of 23 decks -6% synergy
Forbidden Orchard
26% of 23 decks +23% synergy
Tundra
26% of 23 decks +12% synergy
Tropical Island
26% of 23 decks +12% synergy
Dreamroot Cascade
26% of 23 decks +7% synergy
Sea of Clouds
26% of 23 decks +0% synergy
Fabled Passage
22% of 23 decks +13% synergy
Polluted Delta
22% of 23 decks +10% synergy
Savannah
22% of 23 decks +9% synergy
Deserted Beach
22% of 23 decks +6% synergy
Overgrown Farmland
22% of 23 decks +6% synergy
Evolving Wilds
22% of 23 decks +1% synergy
Bountiful Promenade
22% of 23 decks -2% synergy
Seaside Citadel
22% of 23 decks -4% synergy
Prairie Stream
22% of 23 decks -12% synergy
Tangled Islet
20% of 20 decks +13% synergy
Razorverge Thicket
17% of 23 decks +13% synergy
Terramorphic Expanse
17% of 23 decks +2% synergy
Brushland
17% of 23 decks +1% synergy
Sunpetal Grove
17% of 23 decks -6% synergy
Glacial Fortress
17% of 23 decks -8% synergy
Idyllic Beachfront
15% of 20 decks +12% synergy
Radiant Grove
15% of 20 decks +9% synergy
Botanical Sanctum
13% of 23 decks +9% synergy
Seachrome Coast
13% of 23 decks +8% synergy
Waterlogged Grove
13% of 23 decks +6% synergy
Azorius Chancery
13% of 23 decks -2% synergy
Adarkar Wastes
13% of 23 decks -4% synergy
Path of Ancestry
13% of 23 decks -8% synergy
Hinterland Harbor
13% of 23 decks -14% synergy