Urza, Lord High Artificer + Pili-Pala + Agatha of the Vile Cauldron

Urza, Lord High Artificer
Pili-Pala
Agatha of the Vile Cauldron

Requires
Urza, Lord High Artificer must be on the battlefield. Pili-Pala must be on the battlefield. Agatha of the Vile Cauldron must be on the battlefield. Pili-Pala does not have summoning sickness.
Steps
  1. Activate Urza's first ability by tapping Pili-Pala, adding .
  2. Activate Pili-Pala by paying 1 and untapping it, adding one mana of any color.
  3. Repeat.
  4. Once you have infinite mana, you may use it to activate Urza's ability.
Results
Cast all cards in your library without paying their mana costs. Infinite colored mana.

The Fifteenth Doctor // Susan Foreman
12.50% of 8 decks 1 decks
The Tenth Doctor // Graham O'Brien
2.33% of 43 decks 1 decks
Kraum, Ludevic's Opus // Reyhan, Last of the Abzan
0.39% of 257 decks 1 decks
Tazri, Stalwart Survivor
0.24% of 1633 decks 4 decks
Loot, the Key to Everything
0.04% of 2768 decks 1 decks
Kenrith, the Returned King
0.01% of 20767 decks 3 decks
High Synergy Cards
Zirda, the Dawnwaker
100% of 7 decks +99% synergy
Kinnan, Bonder Prodigy
82% of 11 decks +81% synergy
Agatha's Soul Cauldron
82% of 11 decks +80% synergy
Faeburrow Elder
71% of 7 decks +69% synergy
Biomancer's Familiar
64% of 11 decks +63% synergy
Training Grounds
64% of 11 decks +62% synergy
Dynaheir, Invoker Adept
57% of 7 decks +57% synergy
Bloom Tender
55% of 11 decks +51% synergy
Tyvar, Jubilant Brawler
50% of 8 decks +49% synergy
Paradise Mantle
45% of 11 decks +45% synergy
Top Cards
Path to Exile
57% of 7 decks +37% synergy
Staff of Domination
45% of 11 decks +44% synergy
Rhystic Study
45% of 11 decks +32% synergy
The Enigma Jewel
44% of 9 decks +44% synergy
Knacksaw Clique
36% of 11 decks +36% synergy
Heartstone
36% of 11 decks +36% synergy
Pemmin's Aura
36% of 11 decks +36% synergy
Freed from the Real
36% of 11 decks +35% synergy
Thousand-Year Elixir
36% of 11 decks +34% synergy
Incubation Druid
36% of 11 decks +34% synergy
Creatures
Chulane, Teller of Tales
43% of 7 decks +42% synergy
Shalai, Voice of Plenty
43% of 7 decks +41% synergy
Havengul Lich
38% of 8 decks +37% synergy
Walking Ballista
36% of 11 decks +34% synergy
Birds of Paradise
36% of 11 decks +24% synergy
Experiment Kraj
27% of 11 decks +27% synergy
Svella, Ice Shaper
27% of 11 decks +27% synergy
Omen Hawker
27% of 11 decks +27% synergy
Vexing Shusher
27% of 11 decks +27% synergy
Devoted Druid
27% of 11 decks +26% synergy
Displacer Kitten
27% of 11 decks +25% synergy
Etali, Primal Conqueror
27% of 11 decks +25% synergy
Faerie Mastermind
27% of 11 decks +24% synergy
Delighted Halfling
27% of 11 decks +20% synergy
Eternal Witness
27% of 11 decks +17% synergy
Instants
Teferi's Protection
43% of 7 decks +34% synergy
Swords to Plowshares
43% of 7 decks +14% synergy
Vampiric Tutor
38% of 8 decks +28% synergy
Worldly Tutor
27% of 11 decks +21% synergy
Deflecting Swat
27% of 11 decks +19% synergy
Fierce Guardianship
27% of 11 decks +19% synergy
Counterspell
27% of 11 decks +6% synergy
Sorceries
Demonic Tutor
50% of 8 decks +38% synergy
Three Visits
27% of 11 decks +16% synergy
Farseek
27% of 11 decks +11% synergy
Utility Artifacts
Isochron Scepter
36% of 11 decks +34% synergy
Umbral Mantle
27% of 11 decks +26% synergy
Illusionist's Bracers
27% of 11 decks +26% synergy
Lightning Greaves
27% of 11 decks +2% synergy
Enchantments
Smothering Tithe
43% of 7 decks +31% synergy
Bigger on the Inside
30% of 10 decks +29% synergy
Cryptolith Rite
27% of 11 decks +26% synergy
Utility Lands
Otawara, Soaring City
45% of 11 decks +37% synergy
Boseiju, Who Endures
27% of 11 decks +18% synergy
Mana Artifacts
Arcane Signet
82% of 11 decks +10% synergy
Sol Ring
64% of 11 decks -21% synergy
Fellwar Stone
45% of 11 decks +25% synergy
Basalt Monolith
36% of 11 decks +34% synergy
Chromatic Lantern
36% of 11 decks +27% synergy
Mana Crypt
36% of 11 decks +25% synergy
Mana Vault
27% of 11 decks +21% synergy
Lands
Command Tower
91% of 11 decks +17% synergy
The World Tree
71% of 7 decks +69% synergy
Xander's Lounge
62% of 8 decks +59% synergy
Tropical Island
55% of 11 decks +51% synergy
Bayou
50% of 8 decks +47% synergy
Ziatora's Proving Ground
50% of 8 decks +47% synergy
Zagoth Triome
50% of 8 decks +47% synergy
Taiga
45% of 11 decks +43% synergy
Ketria Triome
45% of 11 decks +42% synergy
Rejuvenating Springs
45% of 11 decks +39% synergy
Training Center
45% of 11 decks +39% synergy
Mana Confluence
45% of 11 decks +38% synergy
Steam Vents
45% of 11 decks +36% synergy
Stomping Ground
45% of 11 decks +36% synergy
Breeding Pool
45% of 11 decks +36% synergy
Wooded Foothills
45% of 11 decks +35% synergy
Arid Mesa
45% of 11 decks +35% synergy
Scalding Tarn
45% of 11 decks +34% synergy
Exotic Orchard
45% of 11 decks +10% synergy
Savannah
43% of 7 decks +40% synergy
Raffine's Tower
43% of 7 decks +39% synergy
Spara's Headquarters
43% of 7 decks +39% synergy
Sacred Foundry
43% of 7 decks +35% synergy
Temple Garden
43% of 7 decks +34% synergy
Hallowed Fountain
43% of 7 decks +34% synergy
Godless Shrine
43% of 7 decks +34% synergy
Badlands
38% of 8 decks +34% synergy
Underground Sea
38% of 8 decks +34% synergy
Overgrown Tomb
38% of 8 decks +28% synergy
Watery Grave
38% of 8 decks +27% synergy
Spire Garden
36% of 11 decks +31% synergy
Windswept Heath
36% of 11 decks +26% synergy
Flooded Strand
36% of 11 decks +26% synergy
Polluted Delta
36% of 11 decks +25% synergy
Verdant Catacombs
36% of 11 decks +25% synergy
Barkchannel Pathway
27% of 11 decks +25% synergy
Volcanic Island
27% of 11 decks +24% synergy
Reflecting Pool
27% of 11 decks +22% synergy
City of Brass
27% of 11 decks +19% synergy
Bloodstained Mire
27% of 11 decks +17% synergy
Marsh Flats
27% of 11 decks +16% synergy
Misty Rainforest
27% of 11 decks +15% synergy