River Kelpie + Mikaeus, the Unhallowed + Phyrexian Altar

River Kelpie
Mikaeus, the Unhallowed
Phyrexian Altar

Requires
River Kelpie must be on the battlefield. Mikaeus, the Unhallowed must be on the battlefield. Phyrexian Altar must be on the battlefield.
Steps
  1. Activate Phyrexian Altar by sacrificing River Kelpie, adding 1.
  2. River Kelpie's persist and undying abilities trigger.
  3. Resolve the persist trigger, returning River Kelpie from your graveyard to the battlefield with a -1/-1 counter on it.
  4. River Kelpie enters the battlefield, causing you to draw.
  5. The undying trigger fails to resolve because River Kelpie is not in your graveyard.
  6. Activate Phyrexian Altar by sacrificing River Kelpie, adding 1.
  7. River Kelpie's undying and persist abilities trigger.
  8. Resolve the undying trigger, returning River Kelpie from your graveyard to the battlefield with a +1/+1 counter on it.
  9. River Kelpie enters the battlefield, causing you to draw a card.
  10. The persist trigger fails to resolve because River Kelpie is not in your graveyard.
  11. Repeat.
Results
Infinite card draw. Near-infinite colored mana. Near-infinite death triggers. Near-infinite ETB. Near-infinite LTB. Near-infinite sacrifice triggers.

Top Commanders (2)
Marchesa, the Black Rose
7.23% of 8871 decks 641 decks
Muldrotha, the Gravetide
0.77% of 14884 decks 115 decks
New Cards (2)
Satoru, the Infiltrator
74% of 23 decks +72% synergy
Rakdos, the Muscle
35% of 20 decks +33% synergy
High Synergy Cards (10)
Flayer of the Hatebound
82% of 669 decks +81% synergy
Uncivil Unrest
79% of 343 decks +78% synergy
Kitchen Finks
78% of 9 decks +78% synergy
Goblin Bombardment
74% of 669 decks +71% synergy
Unspeakable Symbol
68% of 853 decks +68% synergy
Solemnity
68% of 37 decks +67% synergy
Glen Elendra Archmage
66% of 853 decks +65% synergy
Luminous Broodmoth
64% of 36 decks +63% synergy
Carrion Feeder
65% of 853 decks +62% synergy
Spore Frog
63% of 135 decks +62% synergy
Top Cards (10)
Ashnod's Altar
79% of 853 decks +71% synergy
Eternal Witness
70% of 135 decks +60% synergy
Blasphemous Act
68% of 669 decks +52% synergy
Viscera Seer
67% of 853 decks +61% synergy
Solemn Simulacrum
62% of 853 decks +47% synergy
Baleful Strix
61% of 853 decks +57% synergy
Grim Haruspex
61% of 853 decks +58% synergy
Sneak Attack
59% of 669 decks +58% synergy
Haywire Mite
58% of 85 decks +56% synergy
Sakura-Tribe Elder
57% of 135 decks +48% synergy
Creatures (50)
Yahenni, Undying Partisan
54% of 852 decks +52% synergy
Feral Ghoul
53% of 51 decks +50% synergy
Dockside Extortionist
52% of 666 decks +44% synergy
Iron Apprentice
52% of 789 decks +52% synergy
Scorn-Blade Berserker
51% of 399 decks +51% synergy
Mahadi, Emporium Master
50% of 565 decks +48% synergy
Drana, Liberator of Malakir
50% of 852 decks +48% synergy
Herald of Secret Streams
47% of 852 decks +46% synergy
Danny Pink
47% of 225 decks +46% synergy
Good-Fortune Unicorn
44% of 9 decks +44% synergy
Birds of Paradise
44% of 135 decks +32% synergy
Spark Double
44% of 851 decks +41% synergy
Underrealm Lich
44% of 135 decks +43% synergy
Braids, Arisen Nightmare
43% of 626 decks +39% synergy
Hermit Druid
41% of 135 decks +40% synergy
The Gitrog Monster
41% of 135 decks +40% synergy
Cankerbloom
41% of 64 decks +36% synergy
Puppeteer Clique
40% of 853 decks +39% synergy
Zealous Conscripts
40% of 669 decks +39% synergy
Juri, Master of the Revue
40% of 653 decks +39% synergy
Sage of Fables
39% of 853 decks +38% synergy
Thundering Raiju
38% of 630 decks +37% synergy
Uro, Titan of Nature's Wrath
38% of 135 decks +37% synergy
Dauthi Voidwalker
36% of 825 decks +31% synergy
Yawgmoth, Thran Physician
36% of 851 decks +34% synergy
Mulldrifter
35% of 853 decks +31% synergy
World Shaper
34% of 135 decks +33% synergy
Bloodtracker
34% of 851 decks +33% synergy
Heartmender
33% of 9 decks +33% synergy
Safehold Elite
33% of 9 decks +33% synergy
Saffi Eriksdotter
33% of 9 decks +33% synergy
Noble Hierarch
33% of 9 decks +31% synergy
Gisa, Glorious Resurrector
33% of 815 decks +32% synergy
Greedy Freebooter
32% of 125 decks +31% synergy
Imperial Recruiter
31% of 669 decks +28% synergy
Esper Sentinel
31% of 36 decks +21% synergy
Dack's Duplicate
28% of 669 decks +28% synergy
Voldaren Thrillseeker
26% of 347 decks +26% synergy
Meren of Clan Nel Toth
26% of 135 decks +25% synergy
Deathrite Shaman
26% of 135 decks +23% synergy
Ramunap Excavator
26% of 135 decks +23% synergy
Legate Lanius, Caesar's Ace
26% of 43 decks +25% synergy
Gray Merchant of Asphodel
25% of 853 decks +21% synergy
Elas il-Kor, Sadistic Pilgrim
25% of 20 decks +22% synergy
Delighted Halfling
25% of 48 decks +18% synergy
Fiend Artisan
24% of 135 decks +24% synergy
Kithkin Spellduster
24% of 37 decks +24% synergy
Kethek, Crucible Goliath
24% of 382 decks +24% synergy
Fain, the Broker
24% of 829 decks +23% synergy
Dryad of the Ilysian Grove
24% of 135 decks +20% synergy
Instants (50)
Chaos Warp
55% of 669 decks +39% synergy
Cyclonic Rift
52% of 853 decks +38% synergy
Counterspell
46% of 853 decks +25% synergy
Swords to Plowshares
46% of 37 decks +17% synergy
Enlightened Tutor
43% of 37 decks +35% synergy
Assassin's Trophy
38% of 135 decks +32% synergy
Path to Exile
35% of 37 decks +16% synergy
Vampiric Tutor
32% of 853 decks +22% synergy
Fierce Guardianship
29% of 840 decks +21% synergy
Mana Drain
28% of 853 decks +20% synergy
Dovin's Veto
27% of 37 decks +22% synergy
Terminate
26% of 669 decks +21% synergy
Village Rites
24% of 839 decks +18% synergy
Swan Song
22% of 853 decks +14% synergy
Teferi's Protection
22% of 37 decks +12% synergy
Arcane Denial
21% of 853 decks +11% synergy
Deflecting Swat
19% of 658 decks +11% synergy
Void Rend
18% of 33 decks +16% synergy
Deadly Dispute
18% of 820 decks +12% synergy
Silence
16% of 37 decks +13% synergy
Heroic Intervention
16% of 135 decks +2% synergy
Beast Within
15% of 135 decks -4% synergy
Negate
15% of 853 decks +3% synergy
An Offer You Can't Refuse
14% of 773 decks +4% synergy
Deadly Rollick
14% of 840 decks +9% synergy
Act of Aggression
14% of 669 decks +13% synergy
Despark
14% of 37 decks +9% synergy
Crop Rotation
13% of 135 decks +9% synergy
Plumb the Forbidden
13% of 829 decks +11% synergy
Bedevil
12% of 667 decks +9% synergy
Feign Death
12% of 823 decks +10% synergy
Entomb
11% of 853 decks +8% synergy
Generous Gift
11% of 37 decks -1% synergy
Worldly Tutor
10% of 135 decks +3% synergy
Malakir Rebirth
10% of 838 decks +5% synergy
Dark Ritual
9% of 853 decks -2% synergy
Harrow
8% of 135 decks +3% synergy
Anguished Unmaking
8% of 37 decks +3% synergy
Rakdos Charm
8% of 669 decks +5% synergy
Lethal Scheme
7% of 773 decks +7% synergy
Force of Will
7% of 853 decks +2% synergy
First Day of Class
7% of 648 decks +7% synergy
Slip Out the Back
7% of 773 decks +5% synergy
Mystical Tutor
7% of 853 decks -1% synergy
Brainstorm
6% of 853 decks -5% synergy
Domineering Will
6% of 853 decks +6% synergy
Force of Negation
6% of 851 decks +2% synergy
Reality Shift
6% of 853 decks +1% synergy
Putrefy
6% of 135 decks +2% synergy
Undying Malice
6% of 802 decks +5% synergy
Sorceries (48)
Mark of Mutiny
44% of 669 decks +44% synergy
Toxic Deluge
44% of 853 decks +36% synergy
Demonic Tutor
42% of 853 decks +30% synergy
Vandalblast
39% of 669 decks +30% synergy
Feed the Swarm
38% of 838 decks +28% synergy
Damnation
34% of 853 decks +29% synergy
Life from the Loam
33% of 135 decks +32% synergy
Mob Rule
28% of 669 decks +27% synergy
Diabolic Intent
27% of 853 decks +22% synergy
Reanimate
23% of 853 decks +16% synergy
Victimize
22% of 853 decks +16% synergy
Living Death
19% of 853 decks +16% synergy
Mass Mutiny
17% of 669 decks +17% synergy
Idyllic Tutor
16% of 37 decks +14% synergy
Insurrection
16% of 669 decks +15% synergy
Cultivate
16% of 135 decks -7% synergy
Kodama's Reach
15% of 135 decks -1% synergy
Seize the Spotlight
15% of 616 decks +14% synergy
Wave Goodbye
14% of 180 decks +13% synergy
Damn
14% of 35 decks +10% synergy
Jeska's Will
14% of 653 decks +5% synergy
Nature's Lore
14% of 135 decks -1% synergy
Supreme Verdict
14% of 37 decks +10% synergy
Farseek
13% of 135 decks -2% synergy
Squirming Emergence
12% of 26 decks +10% synergy
Three Visits
11% of 135 decks -1% synergy
Fractured Identity
11% of 37 decks +10% synergy
Sevinne's Reclamation
11% of 37 decks +8% synergy
Wrath of God
11% of 37 decks +7% synergy
Kari Zev's Expertise
10% of 668 decks +10% synergy
Culling Ritual
10% of 133 decks +7% synergy
Furnace Reins
10% of 346 decks +9% synergy
Act of Treason
9% of 669 decks +9% synergy
Buried Alive
9% of 853 decks +6% synergy
Bala Ged Recovery
8% of 134 decks +4% synergy
Replenish
8% of 37 decks +8% synergy
Austere Command
8% of 37 decks +2% synergy
Agadeem's Awakening
8% of 838 decks +6% synergy
Windfall
8% of 853 decks +1% synergy
Last One Standing
7% of 668 decks +7% synergy
Grim Tutor
7% of 853 decks +4% synergy
Faithless Looting
6% of 669 decks -2% synergy
Harness by Force
6% of 669 decks +6% synergy
Jarad's Orders
6% of 135 decks +5% synergy
Villainous Wealth
6% of 135 decks +5% synergy
Skyshroud Claim
6% of 135 decks +1% synergy
Slave of Bolas
6% of 669 decks +6% synergy
Rampant Growth
5% of 135 decks -11% synergy
Utility Artifacts (18)
Lightning Greaves
55% of 853 decks +30% synergy
Andúril, Narsil Reforged
51% of 175 decks +50% synergy
The Ozolith
48% of 841 decks +44% synergy
Skullclamp
45% of 853 decks +32% synergy
Altar of Dementia
38% of 853 decks +35% synergy
Agatha's Soul Cauldron
33% of 256 decks +31% synergy
Swiftfoot Boots
28% of 853 decks -0% synergy
Birthing Pod
21% of 135 decks +19% synergy
Conduit of Worlds
14% of 73 decks +10% synergy
Bolas's Citadel
10% of 851 decks +5% synergy
Wayfarer's Bauble
10% of 853 decks -1% synergy
The Great Henge
10% of 135 decks +5% synergy
Archaeomancer's Map
8% of 36 decks +6% synergy
The One Ring
8% of 426 decks -1% synergy
Matzalantli, the Great Door
6% of 189 decks +4% synergy
Desecrated Tomb
5% of 852 decks +5% synergy
Mesmeric Orb
5% of 853 decks +4% synergy
Cauldron of Souls
5% of 853 decks +5% synergy
Enchantments (50)
Pernicious Deed
56% of 135 decks +56% synergy
Thran Vigil
55% of 550 decks +54% synergy
Seal of Primordium
51% of 135 decks +50% synergy
Rhystic Study
50% of 853 decks +36% synergy
Phyrexian Unlife
43% of 37 decks +43% synergy
Smothering Tithe
35% of 37 decks +23% synergy
Nine Lives
33% of 36 decks +33% synergy
Dictate of Erebos
32% of 853 decks +30% synergy
Greater Auramancy
30% of 37 decks +29% synergy
Delaying Shield
27% of 37 decks +27% synergy
Exploration
27% of 135 decks +23% synergy
Grave Pact
24% of 853 decks +21% synergy
Mystic Remora
22% of 853 decks +13% synergy
Black Market Connections
22% of 671 decks +16% synergy
Grave Betrayal
21% of 853 decks +21% synergy
Sylvan Library
21% of 135 decks +15% synergy
Feast on the Fallen
19% of 853 decks +19% synergy
Ghostly Prison
19% of 37 decks +13% synergy
Insidious Roots
19% of 16 decks +17% synergy
Animate Dead
18% of 853 decks +13% synergy
Defense of the Heart
18% of 135 decks +17% synergy
Phyrexian Arena
18% of 853 decks +10% synergy
Greater Good
16% of 135 decks +14% synergy
All Will Be One
15% of 365 decks +13% synergy
Grasp of Fate
14% of 37 decks +12% synergy
Land Tax
14% of 37 decks +10% synergy
Phyrexian Reclamation
13% of 853 decks +11% synergy
Kaya's Ghostform
13% of 851 decks +11% synergy
Necropotence
12% of 853 decks +10% synergy
Kenrith's Transformation
12% of 135 decks +8% synergy
Journey to Eternity
11% of 135 decks +10% synergy
Carpet of Flowers
11% of 135 decks +9% synergy
Warstorm Surge
11% of 669 decks +8% synergy
Celestial Convergence
11% of 37 decks +11% synergy
Aura of Silence
11% of 37 decks +9% synergy
Survival of the Fittest
10% of 135 decks +9% synergy
The Meathook Massacre
10% of 813 decks +7% synergy
Black Market
10% of 853 decks +8% synergy
Pattern of Rebirth
9% of 135 decks +8% synergy
Attrition
8% of 853 decks +8% synergy
Elephant Grass
8% of 135 decks +8% synergy
Inner Sanctum
8% of 37 decks +8% synergy
Martyr's Bond
8% of 37 decks +8% synergy
Enchanted Evening
8% of 37 decks +8% synergy
Authority of the Consuls
8% of 37 decks +6% synergy
Cathars' Crusade
8% of 37 decks +5% synergy
Blind Obedience
8% of 37 decks +5% synergy
Necromancy
8% of 853 decks +6% synergy
Sultai Ascendancy
7% of 135 decks +6% synergy
Wild Growth
7% of 135 decks +1% synergy
Planeswalkers (8)
Oko, Thief of Crowns
27% of 135 decks +26% synergy
Wrenn and Realmbreaker
18% of 56 decks +17% synergy
Tamiyo, Collector of Tales
18% of 135 decks +17% synergy
Geyadrone Dihada
16% of 646 decks +16% synergy
Liliana, Dreadhorde General
10% of 851 decks +8% synergy
Ashiok, Dream Render
7% of 851 decks +6% synergy
Grist, the Hunger Tide
7% of 133 decks +6% synergy
Wrenn and Seven
5% of 128 decks +4% synergy
Utility Lands (28)
Phyrexian Tower
56% of 853 decks +52% synergy
Urborg, Tomb of Yawgmoth
47% of 853 decks +36% synergy
High Market
43% of 853 decks +40% synergy
Boseiju, Who Endures
40% of 124 decks +30% synergy
Bojuka Bog
36% of 853 decks +20% synergy
Forge of Heroes
33% of 851 decks +32% synergy
Reliquary Tower
29% of 853 decks +1% synergy
Ancient Tomb
24% of 853 decks +13% synergy
Hall of Heliod's Generosity
19% of 37 decks +16% synergy
The Black Gate
17% of 324 decks +15% synergy
Cabal Coffers
16% of 853 decks +10% synergy
Otawara, Soaring City
16% of 795 decks +7% synergy
Tyrite Sanctum
13% of 834 decks +10% synergy
Takenuma, Abandoned Mire
12% of 794 decks +6% synergy
Drannith Ruins
12% of 354 decks +11% synergy
Command Beacon
12% of 852 decks +7% synergy
Strip Mine
11% of 853 decks +7% synergy
Urza's Saga
10% of 825 decks +3% synergy
Nesting Grounds
10% of 840 decks +8% synergy
Eiganjo, Seat of the Empire
9% of 34 decks +4% synergy
Gaea's Cradle
7% of 135 decks +5% synergy
Field of the Dead
7% of 851 decks +3% synergy
Rogue's Passage
7% of 853 decks -12% synergy
Yavimaya, Cradle of Growth
6% of 828 decks -4% synergy
Castle Locthwain
5% of 847 decks +2% synergy
Dryad Arbor
5% of 135 decks +3% synergy
Karn's Bastion
5% of 851 decks +0% synergy
Temple of the False God
5% of 853 decks -5% synergy
Mana Artifacts (26)
Sol Ring
94% of 853 decks +10% synergy
Arcane Signet
86% of 847 decks +15% synergy
Talisman of Indulgence
60% of 669 decks +54% synergy
Talisman of Creativity
56% of 667 decks +49% synergy
Talisman of Dominance
55% of 853 decks +47% synergy
Rakdos Signet
49% of 669 decks +42% synergy
Dimir Signet
43% of 853 decks +35% synergy
Izzet Signet
40% of 669 decks +33% synergy
Talisman of Progress
38% of 37 decks +33% synergy
Talisman of Hierarchy
32% of 37 decks +27% synergy
Azorius Signet
32% of 37 decks +26% synergy
Fellwar Stone
29% of 853 decks +8% synergy
Orzhov Signet
27% of 37 decks +20% synergy
Mana Crypt
21% of 853 decks +9% synergy
Chromatic Lantern
18% of 853 decks +8% synergy
Relic of Sauron
17% of 264 decks +16% synergy
Lotus Petal
12% of 853 decks +6% synergy
Golgari Signet
12% of 135 decks +9% synergy
Simic Signet
11% of 135 decks +8% synergy
Commander's Sphere
10% of 853 decks -6% synergy
Jeweled Lotus
9% of 835 decks +2% synergy
Thought Vessel
9% of 852 decks -7% synergy
Talisman of Resilience
9% of 135 decks +7% synergy
Talisman of Curiosity
7% of 135 decks +5% synergy
Mind Stone
6% of 853 decks -12% synergy
Mana Vault
5% of 853 decks -1% synergy
Lands (50)
Command Tower
92% of 853 decks +19% synergy
Overgrown Tomb
81% of 135 decks +72% synergy
Breeding Pool
80% of 135 decks +71% synergy
Watery Grave
79% of 853 decks +68% synergy
Steam Vents
78% of 669 decks +69% synergy
Blood Crypt
76% of 669 decks +67% synergy
Zagoth Triome
73% of 135 decks +70% synergy
Xander's Lounge
72% of 616 decks +69% synergy
Hallowed Fountain
70% of 37 decks +61% synergy
Godless Shrine
70% of 37 decks +61% synergy
Underground Mortuary
64% of 14 decks +59% synergy
Training Center
58% of 653 decks +52% synergy
Raffine's Tower
58% of 33 decks +54% synergy
Luxury Suite
57% of 668 decks +51% synergy
Hedge Maze
57% of 14 decks +53% synergy
Polluted Delta
54% of 853 decks +43% synergy
Dragonskull Summit
54% of 669 decks +47% synergy
Morphic Pool
53% of 852 decks +47% synergy
Undergrowth Stadium
53% of 134 decks +47% synergy
Exotic Orchard
52% of 853 decks +17% synergy
Shivan Reef
52% of 669 decks +46% synergy
Sea of Clouds
51% of 37 decks +46% synergy
Vault of Champions
50% of 36 decks +44% synergy
Stomping Ground
50% of 6 decks +41% synergy
Drowned Catacomb
49% of 853 decks +43% synergy
Rejuvenating Springs
49% of 134 decks +42% synergy
Sulfur Falls
46% of 669 decks +40% synergy
Bloodstained Mire
45% of 853 decks +35% synergy
Temple Garden
44% of 9 decks +35% synergy
Scalding Tarn
44% of 853 decks +33% synergy
Sulfurous Springs
44% of 669 decks +40% synergy
Crumbling Necropolis
41% of 669 decks +38% synergy
Underground River
41% of 853 decks +37% synergy
Woodland Cemetery
37% of 135 decks +32% synergy
Arcane Sanctum
35% of 37 decks +32% synergy
Opal Palace
34% of 853 decks +31% synergy
Savannah
33% of 9 decks +31% synergy
Hinterland Harbor
33% of 135 decks +28% synergy
Tundra
32% of 37 decks +29% synergy
Scrubland
32% of 37 decks +29% synergy
Glacial Fortress
30% of 37 decks +25% synergy
Opulent Palace
30% of 135 decks +27% synergy
Sunken Hollow
30% of 852 decks +21% synergy
City of Brass
29% of 853 decks +21% synergy
Deserted Beach
29% of 35 decks +25% synergy
Undercity Sewers
28% of 80 decks +22% synergy
Shipwreck Marsh
27% of 817 decks +22% synergy
Bayou
27% of 135 decks +24% synergy
Llanowar Wastes
27% of 135 decks +22% synergy
Smoldering Marsh
26% of 668 decks +19% synergy