Spike Feeder + Unspeakable Symbol + Pir, Imaginative Rascal

Spike Feeder
Unspeakable Symbol
Pir, Imaginative Rascal

Requires
Spike Feeder must be on the battlefield. Unspeakable Symbol must be on the battlefield. Pir, Imaginative Rascal must be on the battlefield. You have at least four life.
Steps
  1. Activate Unspeakable Symbol by paying three life, putting two +1/+1 counters on Spike Feeder.
  2. Activate Spike Feeder's second ability twice by removing two +1/+1 counters from it, causing you to gain four life.
  3. Repeat.
Results
Infinite +1/+1 counters. Infinite lifegain. Infinite lifegain triggers.

Skullbriar, the Walking Grave
0.11% of 6486 decks 7 decks
Atraxa, Praetors' Voice
0.02% of 35211 decks 6 decks
The Wise Mothman
0.02% of 12479 decks 2 decks
Reyhan, Last of the Abzan // Yoshimaru, Ever Faithful
0.06% of 1730 decks 1 decks
Ishai, Ojutai Dragonspeaker // Reyhan, Last of the Abzan
0.06% of 1569 decks 1 decks
Kraum, Ludevic's Opus // Reyhan, Last of the Abzan
0.36% of 276 decks 1 decks
High Synergy Cards
Hardened Scales
89% of 18 decks +80% synergy
Winding Constrictor
83% of 18 decks +79% synergy
Branching Evolution
83% of 18 decks +78% synergy
Heliod, Sun-Crowned
75% of 8 decks +72% synergy
Ozolith, the Shattered Spire
75% of 12 decks +69% synergy
The Ozolith
67% of 18 decks +63% synergy
Corpsejack Menace
67% of 18 decks +62% synergy
Archangel of Thune
62% of 8 decks +60% synergy
Brokers Ascendancy
67% of 6 decks +59% synergy
Kami of Whispered Hopes
67% of 12 decks +59% synergy
Top Cards
Swords to Plowshares
75% of 8 decks +12% synergy
Teferi's Protection
62% of 8 decks +42% synergy
Walking Ballista
61% of 18 decks +59% synergy
Forgotten Ancient
61% of 18 decks +55% synergy
Fathom Mage
60% of 10 decks +56% synergy
Rhystic Study
60% of 10 decks +32% synergy
Cyclonic Rift
60% of 10 decks +32% synergy
Bristly Bill, Spine Sower
57% of 7 decks +52% synergy
Vorinclex, Monstrous Raider
56% of 18 decks +52% synergy
The Great Henge
56% of 18 decks +46% synergy
Creatures
Benevolent Hydra
53% of 15 decks +52% synergy
Toothy, Imaginary Friend
50% of 10 decks +49% synergy
Deepglow Skate
50% of 10 decks +48% synergy
Master Biomancer
50% of 10 decks +46% synergy
Evolution Witness
50% of 6 decks +45% synergy
Triskelion
44% of 18 decks +44% synergy
Slippery Bogbonder
44% of 18 decks +43% synergy
Tekuthal, Inquiry Dominus
44% of 9 decks +42% synergy
Evolution Sage
44% of 18 decks +37% synergy
Arwen, Weaver of Hope
40% of 10 decks +37% synergy
Crystalline Crawler
39% of 18 decks +39% synergy
Titanoth Rex
39% of 18 decks +37% synergy
Vigor
39% of 18 decks +36% synergy
Kalonian Hydra
39% of 18 decks +36% synergy
Mikaeus, the Lunarch
38% of 8 decks +35% synergy
Conclave Mentor
38% of 8 decks +33% synergy
Shalai, Voice of Plenty
38% of 8 decks +30% synergy
Esper Sentinel
38% of 8 decks +17% synergy
Duskfang Mentor
33% of 18 decks +33% synergy
Hornbash Mentor
33% of 18 decks +33% synergy
Kodama of the West Tree
33% of 18 decks +29% synergy
Sage of Hours
30% of 10 decks +30% synergy
Herald of Secret Streams
30% of 10 decks +27% synergy
Thrummingbird
30% of 10 decks +26% synergy
Daring Fiendbonder
28% of 18 decks +27% synergy
Birds of Paradise
28% of 18 decks +1% synergy
Scavenged Brawler
27% of 15 decks +26% synergy
Void Beckoner
22% of 18 decks +22% synergy
Reyhan, Last of the Abzan
22% of 18 decks +21% synergy
Champion of Lambholt
22% of 18 decks +15% synergy
Varolz, the Scar-Striped
17% of 18 decks +16% synergy
Herd Baloth
17% of 18 decks +16% synergy
Necropolis Regent
17% of 18 decks +16% synergy
Jarad, Golgari Lich Lord
17% of 18 decks +13% synergy
Elvish Spirit Guide
17% of 18 decks +13% synergy
Bloom Tender
17% of 18 decks +9% synergy
Eternal Witness
17% of 18 decks -4% synergy
Instants
Inspiring Call
50% of 18 decks +42% synergy
Vampiric Tutor
50% of 18 decks +32% synergy
Worldly Tutor
44% of 18 decks +30% synergy
Assassin's Trophy
44% of 18 decks +14% synergy
Counterspell
40% of 10 decks -3% synergy
Heroic Intervention
39% of 18 decks +9% synergy
Anguished Unmaking
38% of 8 decks +13% synergy
Path to Exile
38% of 8 decks -8% synergy
Unexpected Fangs
33% of 18 decks +33% synergy
Mana Drain
30% of 10 decks +15% synergy
Fierce Guardianship
30% of 10 decks +12% synergy
Brainstorm
30% of 10 decks +9% synergy
Solidarity of Heroes
28% of 18 decks +27% synergy
Invigorating Surge
22% of 18 decks +21% synergy
Snakeskin Veil
22% of 18 decks +18% synergy
Nature's Claim
22% of 18 decks +13% synergy
Abrupt Decay
22% of 18 decks +12% synergy
Beast Within
22% of 18 decks -17% synergy
Astarion's Thirst
18% of 17 decks +17% synergy
Tainted Strike
17% of 18 decks +15% synergy
Chord of Calling
17% of 18 decks +11% synergy
Deadly Rollick
17% of 18 decks +6% synergy
Return of the Wildspeaker
17% of 18 decks +3% synergy
Putrefy
17% of 18 decks +1% synergy
Sorceries
Demonic Tutor
61% of 18 decks +39% synergy
Damning Verdict
43% of 7 decks +41% synergy
Toxic Deluge
39% of 18 decks +22% synergy
Mandate of Abaddon
33% of 15 decks +32% synergy
Three Visits
33% of 18 decks +9% synergy
Nature's Lore
33% of 18 decks +1% synergy
Green Sun's Zenith
28% of 18 decks +21% synergy
Farseek
28% of 18 decks -6% synergy
Increasing Savagery
22% of 18 decks +22% synergy
Visions of Dominance
22% of 18 decks +22% synergy
Cultivate
22% of 18 decks -24% synergy
Call of the Death-Dweller
17% of 18 decks +16% synergy
Triumph of the Hordes
17% of 18 decks +13% synergy
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Agatha's Soul Cauldron
44% of 9 decks +43% synergy
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39% of 18 decks +11% synergy
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33% of 9 decks +32% synergy
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28% of 18 decks +2% synergy
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22% of 18 decks +22% synergy
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22% of 18 decks +21% synergy
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18% of 17 decks +17% synergy
Enchantments
Sylvan Library
44% of 18 decks +33% synergy
Resourceful Defense
43% of 7 decks +42% synergy
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40% of 10 decks +35% synergy
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39% of 18 decks +30% synergy
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38% of 8 decks +30% synergy
Hydra's Growth
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22% of 18 decks +17% synergy
Fight Rigging
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17% of 18 decks +11% synergy
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61% of 18 decks +56% synergy
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50% of 18 decks +40% synergy
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39% of 18 decks +37% synergy
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39% of 18 decks +9% synergy
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22% of 18 decks +20% synergy
Oran-Rief, the Vastwood
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Ancient Tomb
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61% of 18 decks -11% synergy
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33% of 18 decks +32% synergy
Chrome Mox
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67% of 6 decks +35% synergy
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60% of 10 decks +31% synergy
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Vault of Champions
50% of 8 decks +24% synergy
Indatha Triome
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Marsh Flats
44% of 18 decks +33% synergy
Morphic Pool
40% of 10 decks +14% synergy
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33% of 18 decks +26% synergy
City of Brass
33% of 18 decks +25% synergy
Windswept Heath
33% of 18 decks +23% synergy
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33% of 18 decks +22% synergy
Bayou
33% of 18 decks +20% synergy
Exotic Orchard
33% of 18 decks -2% synergy
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30% of 10 decks +18% synergy
Tropical Island
30% of 10 decks +16% synergy
Underground Sea
30% of 10 decks +16% synergy
Flooded Strand
28% of 18 decks +17% synergy
Polluted Delta
28% of 18 decks +17% synergy
Woodland Cemetery
28% of 18 decks +0% synergy
Plaza of Heroes
25% of 16 decks +22% synergy
Gemstone Mine
22% of 18 decks +22% synergy
Opal Palace
22% of 18 decks +20% synergy
Blooming Marsh
22% of 18 decks +18% synergy
Darkbore Pathway
22% of 18 decks +13% synergy
Twilight Mire
22% of 18 decks +12% synergy
Deathcap Glade
22% of 18 decks +8% synergy
Prismatic Vista
17% of 18 decks +11% synergy
Nurturing Peatland
17% of 18 decks +11% synergy
Wooded Foothills
17% of 18 decks +7% synergy
Bloodstained Mire
17% of 18 decks +6% synergy
Tainted Wood
17% of 18 decks +4% synergy
Temple of Malady
17% of 18 decks +0% synergy