Mikaeus, the Unhallowed + Pith Driller + Bloodflow Connoisseur

Mikaeus, the Unhallowed
Pith Driller
Bloodflow Connoisseur

Requires
Mikaeus, the Unhallowed must be on the battlefield. Pith Driller must be on the battlefield. Bloodflow Connoisseur must be on the battlefield. Pith Driller does not have a +1/+1 counter on it.
Steps
  1. Activate Bloodflow Connoisseur by sacrifiicing Pith Driller.
  2. When Pith Driller dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  3. When Pith Driller enters the battlefield, it triggers, putting a -1/-1 counter on it.
  4. Resolve the Bloodflow Connoisseur ability, putting a +1/+1 counter on it.
  5. Repeat.
Results
Infinite +1/+1 counters on Bloodflow Connoisseur. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

Mikaeus, the Unhallowed
0.80% of 1368 decks 11 decks
Varragoth, Bloodsky Sire
0.07% of 1426 decks 1 decks
Marchesa, the Black Rose
0.01% of 9547 decks 1 decks
High Synergy Cards
Putrid Goblin
83% of 12 decks +83% synergy
Carrion Feeder
85% of 13 decks +80% synergy
Ashnod's Altar
85% of 13 decks +77% synergy
Viscera Seer
85% of 13 decks +75% synergy
Bloodthrone Vampire
69% of 13 decks +69% synergy
Puppeteer Clique
69% of 13 decks +68% synergy
Chainbreaker
62% of 13 decks +61% synergy
Tatterkite
62% of 13 decks +61% synergy
Lingering Tormentor
62% of 13 decks +61% synergy
Skinrender
62% of 13 decks +61% synergy
Top Cards
Mind Stone
77% of 13 decks +60% synergy
Dark Ritual
77% of 13 decks +55% synergy
Blood Artist
69% of 13 decks +58% synergy
Nantuko Husk
62% of 13 decks +61% synergy
Blasting Station
62% of 13 decks +61% synergy
Altar of Dementia
62% of 13 decks +59% synergy
Charcoal Diamond
62% of 13 decks +56% synergy
Soulstinger
58% of 12 decks +58% synergy
Lesser Masticore
58% of 12 decks +58% synergy
Cryptic Trilobite
58% of 12 decks +58% synergy
Creatures
Plague Belcher
58% of 12 decks +57% synergy
Walking Ballista
58% of 12 decks +56% synergy
Blood Bairn
54% of 13 decks +54% synergy
Wingrattle Scarecrow
54% of 13 decks +54% synergy
Phyrexian Ghoul
54% of 13 decks +54% synergy
Devouring Swarm
54% of 13 decks +54% synergy
Triskelion
54% of 13 decks +53% synergy
Baleful Ammit
50% of 12 decks +50% synergy
Zulaport Cutthroat
50% of 12 decks +40% synergy
Vindictive Vampire
42% of 12 decks +40% synergy
Ayara, First of Locthwain
42% of 12 decks +38% synergy
Grim Haruspex
42% of 12 decks +38% synergy
Spincrusher
38% of 13 decks +38% synergy
Workhorse
38% of 13 decks +38% synergy
Leaden Myr
38% of 13 decks +36% synergy
Pawn of Ulamog
38% of 13 decks +36% synergy
Falkenrath Noble
38% of 13 decks +36% synergy
Crystalline Crawler
33% of 12 decks +33% synergy
Midnight Reaper
33% of 12 decks +30% synergy
Pitiless Plunderer
33% of 12 decks +26% synergy
Cinderhaze Wretch
31% of 13 decks +31% synergy
Defiant Salvager
25% of 12 decks +25% synergy
Festering Mummy
25% of 12 decks +25% synergy
Smothering Abomination
25% of 12 decks +24% synergy
K'rrik, Son of Yawgmoth
25% of 12 decks +23% synergy
Yahenni, Undying Partisan
25% of 12 decks +22% synergy
Shambling Swarm
23% of 13 decks +23% synergy
Necropede
23% of 13 decks +23% synergy
Blood Pet
23% of 13 decks +22% synergy
Gravecrawler
23% of 13 decks +20% synergy
Burnished Hart
23% of 13 decks +19% synergy
Gray Merchant of Asphodel
23% of 13 decks +14% synergy
Solemn Simulacrum
23% of 13 decks +9% synergy
Instants
Village Rites
33% of 12 decks +23% synergy
Culling the Weak
31% of 13 decks +27% synergy
Corrupted Conviction
30% of 10 decks +24% synergy
Murder
23% of 13 decks +20% synergy
Vampiric Tutor
23% of 13 decks +5% synergy
Sorceries
Diabolic Tutor
38% of 13 decks +32% synergy
Diabolic Intent
38% of 13 decks +30% synergy
Sign in Blood
31% of 13 decks +21% synergy
Bone Shards
25% of 12 decks +23% synergy
Grim Tutor
23% of 13 decks +18% synergy
Demonic Tutor
23% of 13 decks +1% synergy
Utility Artifacts
Phyrexian Altar
54% of 13 decks +50% synergy
Jet Medallion
46% of 13 decks +43% synergy
Swiftfoot Boots
46% of 13 decks +18% synergy
Lightning Greaves
38% of 13 decks +13% synergy
Wayfarer's Bauble
31% of 13 decks +21% synergy
Skullclamp
31% of 13 decks +19% synergy
Desecrated Tomb
25% of 12 decks +25% synergy
Spawning Pit
23% of 13 decks +23% synergy
Enchantments
Bastion of Remembrance
58% of 12 decks +52% synergy
Retribution of the Ancients
33% of 12 decks +33% synergy
Agent of the Iron Throne
25% of 12 decks +23% synergy
Heartless Summoning
23% of 13 decks +22% synergy
Exquisite Blood
23% of 13 decks +18% synergy
Sanguine Bond
23% of 13 decks +17% synergy
Utility Lands
Cabal Stronghold
42% of 12 decks +38% synergy
Urborg, Tomb of Yawgmoth
38% of 13 decks +29% synergy
Cabal Coffers
38% of 13 decks +28% synergy
Phyrexian Tower
31% of 13 decks +22% synergy
Command Beacon
25% of 12 decks +20% synergy
Temple of the False God
23% of 13 decks +13% synergy
Bojuka Bog
23% of 13 decks -7% synergy
Mana Artifacts
Sol Ring
85% of 13 decks +0% synergy
Arcane Signet
83% of 12 decks +11% synergy
Fellwar Stone
46% of 13 decks +25% synergy
Commander's Sphere
42% of 12 decks +27% synergy
Sceptre of Eternal Glory
27% of 11 decks +26% synergy
Thought Vessel
25% of 12 decks +8% synergy
Caged Sun
23% of 13 decks +21% synergy
Worn Powerstone
23% of 13 decks +20% synergy
Everflowing Chalice
23% of 13 decks +18% synergy
Thran Dynamo
23% of 13 decks +18% synergy
Lands
Myriad Landscape
33% of 12 decks +14% synergy