Necrotic Ooze + Hardened Scales + Cryptic Trilobite + Farmstead Gleaner + Walking Ballista

Necrotic Ooze
Hardened Scales
Cryptic Trilobite
Farmstead Gleaner
Walking Ballista

Requires
Necrotic Ooze must be on the battlefield. Hardened Scales must be on the battlefield. Cryptic Trilobite must be in the graveyard. Farmstead Gleaner must be in the graveyard. Walking Ballista must be in the graveyard. Necrotic Ooze does not have summoning sickness.
Steps
  1. Pay 1 and tap Necrotic Ooze using the Trilobite's ability to put a +1/+1 counter on it.
  2. Hardened Scales doubles this.
  3. Remove 2 +1/+1 counters from Necrotic Ooze using the Trilobite's ability to generate 4 for activated abilities.
  4. Pay 2 and untap Necrotic Ooze using Farmstead Gleaner's ability and put 2 +1/+1 counters on Necrotic Ooze.
  5. You have 2 floating and Necrotic Ooze with 2 counters.
  6. Repeat to generate infinite for activated abilities, and Necrotic Ooze having infinite +1/+1 counters Remove counters from Necrotic Ooze using Walking Ballista's ability to ping an opponent.
  7. Repeat to ping your opponent to death.
Results
Infinite colorless mana for activated abilities. Infinite damage.

Reyhan, Last of the Abzan
2.44% of 41 decks 1 decks
Creatures
Saruli Caretaker
100% of 1 decks +100% synergy
Crystalline Crawler
100% of 1 decks +100% synergy
Pridemalkin
100% of 1 decks +100% synergy
Predator Ooze
100% of 1 decks +100% synergy
Hooded Hydra
100% of 1 decks +99% synergy
Hangarback Walker
100% of 1 decks +99% synergy
Loyal Guardian
100% of 1 decks +99% synergy
Polukranos, Unchained
100% of 1 decks +99% synergy
Triskelion
100% of 1 decks +99% synergy
Pir, Imaginative Rascal
100% of 1 decks +99% synergy
Kodama of the East Tree
100% of 1 decks +99% synergy
Kalonian Hydra
100% of 1 decks +99% synergy
Managorger Hydra
100% of 1 decks +98% synergy
Renata, Called to the Hunt
100% of 1 decks +98% synergy
Vigor
100% of 1 decks +98% synergy
Gyre Sage
100% of 1 decks +98% synergy
Bane of Progress
100% of 1 decks +96% synergy
Forgotten Ancient
100% of 1 decks +95% synergy
Scavenging Ooze
100% of 1 decks +95% synergy
Rampaging Baloths
100% of 1 decks +95% synergy
Kami of Whispered Hopes
100% of 1 decks +94% synergy
Winding Constrictor
100% of 1 decks +94% synergy
Corpsejack Menace
100% of 1 decks +93% synergy
Llanowar Elves
100% of 1 decks +66% synergy
Instants
Silkguard
100% of 1 decks +99% synergy
Solidarity of Heroes
100% of 1 decks +98% synergy
Inspiring Call
100% of 1 decks +96% synergy
Return to Nature
100% of 1 decks +92% synergy
Tear Asunder
100% of 1 decks +85% synergy
Heroic Intervention
100% of 1 decks +71% synergy
Beast Within
100% of 1 decks +58% synergy
Sorceries
Disturbed Burial
100% of 1 decks +100% synergy
Verdant Confluence
100% of 1 decks +100% synergy
Slime Against Humanity
100% of 1 decks +99% synergy
Regrowth
100% of 1 decks +95% synergy
Feed the Swarm
100% of 1 decks +91% synergy
Diabolic Intent
100% of 1 decks +89% synergy
Toxic Deluge
100% of 1 decks +80% synergy
Cultivate
100% of 1 decks +57% synergy
Utility Artifacts
Claws of Gix
100% of 1 decks +100% synergy
Sword of Truth and Justice
100% of 1 decks +99% synergy
Fractal Harness
100% of 1 decks +99% synergy
The Ozolith
100% of 1 decks +96% synergy
Ozolith, the Shattered Spire
100% of 1 decks +95% synergy
Phyrexian Altar
100% of 1 decks +91% synergy
Lightning Greaves
100% of 1 decks +77% synergy
Swiftfoot Boots
100% of 1 decks +74% synergy
Skullclamp
100% of 1 decks +68% synergy
Enchantments
Rite of Passage
100% of 1 decks +100% synergy
Retribution of the Ancients
100% of 1 decks +99% synergy
Zendikar Resurgent
100% of 1 decks +99% synergy
Hydra's Growth
100% of 1 decks +97% synergy
Branching Evolution
100% of 1 decks +96% synergy
Primal Vigor
100% of 1 decks +95% synergy
Tribute to the World Tree
100% of 1 decks +93% synergy
Binding the Old Gods
100% of 1 decks +91% synergy
Doubling Season
100% of 1 decks +86% synergy
Utility Lands
Llanowar Reborn
100% of 1 decks +98% synergy
Mortuary Mire
100% of 1 decks +95% synergy
Mosswort Bridge
100% of 1 decks +95% synergy
Oran-Rief, the Vastwood
100% of 1 decks +90% synergy
Reliquary Tower
100% of 1 decks +78% synergy
Rogue's Passage
100% of 1 decks +77% synergy
Urborg, Tomb of Yawgmoth
100% of 1 decks +75% synergy
Mana Artifacts
Gemstone Array
100% of 1 decks +100% synergy
Sol Ring
100% of 1 decks +19% synergy
Lands
Cave of Temptation
100% of 1 decks +100% synergy
Opal Palace
100% of 1 decks +97% synergy
Blighted Woodland
100% of 1 decks +93% synergy
Woodland Chasm
100% of 1 decks +89% synergy
Myriad Landscape
100% of 1 decks +80% synergy
Jungle Hollow
100% of 1 decks +76% synergy
Exotic Orchard
100% of 1 decks +75% synergy
Evolving Wilds
100% of 1 decks +73% synergy
Twilight Mire
100% of 1 decks +72% synergy
Verdant Catacombs
100% of 1 decks +70% synergy
Deathcap Glade
100% of 1 decks +70% synergy
Necroblossom Snarl
100% of 1 decks +67% synergy
Temple of Malady
100% of 1 decks +64% synergy
Tainted Wood
100% of 1 decks +59% synergy
Undergrowth Stadium
100% of 1 decks +59% synergy
Golgari Rot Farm
100% of 1 decks +58% synergy
Overgrown Tomb
100% of 1 decks +53% synergy
Llanowar Wastes
100% of 1 decks +47% synergy
Woodland Cemetery
100% of 1 decks +43% synergy
Command Tower
100% of 1 decks +14% synergy