Miirym, Sentinel Wyrm + Cloudstone Curio + Sneak Attack + Phyrexian Altar

Miirym, Sentinel Wyrm
Cloudstone Curio
Sneak Attack
Phyrexian Altar

Requires
Miirym, Sentinel Wyrm must be on the battlefield. Cloudstone Curio must be on the battlefield. Sneak Attack must be on the battlefield. Phyrexian Altar must be on the battlefield. You have a nonartifact Dragon creature card in hand. Mana needed: r
Steps
  1. Activate Sneak Attack by paying r, putting any Dragon from your hand onto the battlefield.
  2. The Dragon enters the battlefield, triggering Cloudstone Curio and Miirym.
  3. Resolve the Cloudstone Curio trigger, choosing not to return anything to your hand from the battlefield.
  4. Resolve the Miirym trigger, creating a token copy of the Dragon.
  5. The token Dragon enters the battlefield, triggering Cloudstone Curio, returning the nontoken Dragon from the battlefield to your hand.
  6. Activate Phyrexian Altar by sacrificing the Dragon token, adding r.
  7. Repeat.
Results
Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

Top Commanders (1)
Miirym, Sentinel Wyrm
0.06% of 22075 decks 13 decks
High Synergy Cards (10)
Dragon Tempest
100% of 13 decks +86% synergy
Ganax, Astral Hunter
92% of 13 decks +75% synergy
Old Gnawbone
85% of 13 decks +71% synergy
Scourge of Valkas
85% of 13 decks +71% synergy
Terror of the Peaks
85% of 13 decks +70% synergy
Lathliss, Dragon Queen
77% of 13 decks +64% synergy
Atarka, World Render
77% of 13 decks +63% synergy
Worldgorger Dragon
62% of 13 decks +61% synergy
Goldspan Dragon
69% of 13 decks +58% synergy
Slumbering Dragon
54% of 13 decks +54% synergy
Top Cards (10)
Temur Ascendancy
69% of 13 decks +38% synergy
Utvara Hellkite
62% of 13 decks +53% synergy
Ancient Copper Dragon
62% of 13 decks +50% synergy
Dragonlord's Servant
62% of 13 decks +49% synergy
Dragonspeaker Shaman
62% of 13 decks +47% synergy
Korlessa, Scale Singer
62% of 13 decks +46% synergy
Rhythm of the Wild
62% of 13 decks +38% synergy
Garruk's Uprising
62% of 13 decks +33% synergy
Birds of Paradise
62% of 13 decks +31% synergy
Nature's Lore
62% of 13 decks +24% synergy
Creatures (26)
Astral Dragon
60% of 10 decks +49% synergy
Savage Ventmaw
54% of 13 decks +41% synergy
Thrakkus the Butcher
54% of 13 decks +37% synergy
Scaled Nurturer
50% of 10 decks +38% synergy
Hellkite Charger
46% of 13 decks +40% synergy
Spark Double
46% of 13 decks +37% synergy
Ancient Silver Dragon
46% of 13 decks +36% synergy
Klauth, Unrivaled Ancient
46% of 13 decks +36% synergy
Wrathful Red Dragon
46% of 13 decks +33% synergy
Earthquake Dragon
46% of 13 decks +33% synergy
Sakashima of a Thousand Faces
38% of 13 decks +33% synergy
Lozhan, Dragons' Legacy
38% of 13 decks +23% synergy
Dockside Extortionist
38% of 13 decks +23% synergy
Atsushi, the Blazing Sky
31% of 13 decks +26% synergy
Thunderbreak Regent
31% of 13 decks +23% synergy
Niv-Mizzet, Parun
31% of 13 decks +23% synergy
Dragonborn Champion
31% of 13 decks +22% synergy
Bloom Tender
31% of 13 decks +20% synergy
Adrix and Nev, Twincasters
31% of 13 decks +19% synergy
Reckless Barbarian
30% of 10 decks +26% synergy
Galazeth Prismari
23% of 13 decks +21% synergy
Thassa, Deep-Dwelling
23% of 13 decks +20% synergy
Displacer Kitten
23% of 13 decks +19% synergy
Dryad of the Ilysian Grove
23% of 13 decks +18% synergy
Phantasmal Image
23% of 13 decks +18% synergy
Eternal Witness
23% of 13 decks +4% synergy
Instants (12)
Beast Within
62% of 13 decks +15% synergy
Cyclonic Rift
54% of 13 decks +25% synergy
Worldly Tutor
46% of 13 decks +29% synergy
Fierce Guardianship
46% of 13 decks +28% synergy
Chaos Warp
46% of 13 decks +10% synergy
Sarkhan's Triumph
38% of 13 decks +32% synergy
Ghostly Flicker
38% of 13 decks +30% synergy
Deflecting Swat
38% of 13 decks +20% synergy
Heroic Intervention
38% of 13 decks +10% synergy
Nature's Claim
31% of 13 decks +18% synergy
Klauth's Will
23% of 13 decks +16% synergy
Force of Will
23% of 13 decks +15% synergy
Sorceries (9)
Jeska's Will
46% of 13 decks +31% synergy
Three Visits
46% of 13 decks +17% synergy
Blasphemous Act
46% of 13 decks +12% synergy
Bala Ged Recovery
38% of 13 decks +29% synergy
Skyshroud Claim
38% of 13 decks +26% synergy
Cultivate
38% of 13 decks -16% synergy
Rite of Replication
31% of 13 decks +26% synergy
Kodama's Reach
31% of 13 decks -7% synergy
Farseek
23% of 13 decks -25% synergy
Utility Artifacts (5)
Panharmonicon
54% of 13 decks +43% synergy
Urza's Incubator
38% of 13 decks +33% synergy
Herald's Horn
31% of 13 decks +19% synergy
The Great Henge
31% of 13 decks +18% synergy
Conjurer's Closet
23% of 13 decks +19% synergy
Enchantments (8)
Doubling Season
54% of 13 decks +46% synergy
Parallel Lives
54% of 13 decks +45% synergy
Rhystic Study
54% of 13 decks +30% synergy
Kindred Discovery
46% of 13 decks +36% synergy
Reflections of Littjara
31% of 13 decks +25% synergy
Elemental Bond
31% of 13 decks +22% synergy
Mystic Remora
31% of 13 decks +17% synergy
Molten Echoes
23% of 13 decks +21% synergy
Planeswalkers (1)
Sarkhan Unbroken
54% of 13 decks +49% synergy
Utility Lands (7)
Boseiju, Who Endures
54% of 13 decks +33% synergy
Yavimaya, Cradle of Growth
38% of 13 decks +22% synergy
Reliquary Tower
38% of 13 decks +6% synergy
Ancient Tomb
31% of 13 decks +19% synergy
Otawara, Soaring City
31% of 13 decks +15% synergy
Command Beacon
23% of 13 decks +19% synergy
Mosswort Bridge
23% of 13 decks +11% synergy
Mana Artifacts (10)
Sol Ring
92% of 13 decks +9% synergy
Arcane Signet
85% of 13 decks +11% synergy
Mana Crypt
54% of 13 decks +42% synergy
Jeweled Lotus
46% of 13 decks +39% synergy
Dragon's Hoard
46% of 13 decks +32% synergy
Cursed Mirror
38% of 13 decks +33% synergy
Orb of Dragonkind
31% of 13 decks +24% synergy
Carnelian Orb of Dragonkind
31% of 13 decks +19% synergy
Mana Vault
23% of 13 decks +16% synergy
Jade Orb of Dragonkind
23% of 13 decks +13% synergy
Lands (37)
Command Tower
100% of 13 decks +9% synergy
Exotic Orchard
85% of 13 decks +28% synergy
Training Center
77% of 13 decks +42% synergy
Steam Vents
77% of 13 decks +31% synergy
Stomping Ground
77% of 13 decks +29% synergy
Haven of the Spirit Dragon
77% of 13 decks +64% synergy
Scalding Tarn
69% of 13 decks +38% synergy
Spire Garden
69% of 13 decks +37% synergy
Misty Rainforest
69% of 13 decks +37% synergy
Rejuvenating Springs
69% of 13 decks +32% synergy
Ketria Triome
69% of 13 decks +24% synergy
Breeding Pool
69% of 13 decks +23% synergy
Wooded Foothills
62% of 13 decks +33% synergy
Cinder Glade
54% of 13 decks +10% synergy
Flooded Strand
46% of 13 decks +37% synergy
City of Brass
46% of 13 decks +34% synergy
Path of Ancestry
46% of 13 decks +18% synergy
Cavern of Souls
38% of 13 decks +31% synergy
Temple of the Dragon Queen
38% of 13 decks +31% synergy
Bloodstained Mire
38% of 13 decks +30% synergy
Secluded Courtyard
38% of 13 decks +30% synergy
Rockfall Vale
38% of 13 decks +11% synergy
Polluted Delta
31% of 13 decks +22% synergy
Arid Mesa
31% of 13 decks +21% synergy
Windswept Heath
31% of 13 decks +21% synergy
Reflecting Pool
31% of 13 decks +21% synergy
Verdant Catacombs
31% of 13 decks +20% synergy
Unclaimed Territory
31% of 13 decks +19% synergy
Volcanic Island
31% of 13 decks +18% synergy
Taiga
31% of 13 decks +17% synergy
Rootbound Crag
31% of 13 decks +4% synergy
Evolving Wilds
31% of 13 decks +1% synergy
Frontier Bivouac
31% of 13 decks -21% synergy
Tropical Island
23% of 13 decks +10% synergy
Stormcarved Coast
23% of 13 decks +5% synergy
Sulfur Falls
23% of 13 decks -5% synergy
Hinterland Harbor
23% of 13 decks -5% synergy