Heidar, Rimewind Master + Parallax Tide + Retreat to Coralhelm + Caged Sun

Heidar, Rimewind Master
Parallax Tide
Retreat to Coralhelm
Caged Sun

Requires
Heidar, Rimewind Master must be on the battlefield. Parallax Tide must be in hand. Retreat to Coralhelm must be on the battlefield. Caged Sun must be on the battlefield. You control at least four untapped Islands. Heidar does not have summoning sickness. You control at least four snow permanents. "Blue" chosen with Caged Sun.
Steps
  1. Activate four Islands by tapping them, adding .
  2. Caged Sun triggers, adding .
  3. Cast Parallax Tide by paying 2.
  4. Activate Parallax Tide four times by removing four fade counters from it, exiling the four tapped Islands.
  5. Activate Heidar by paying 2 and tapping it, returning Parallax Tide from the battlefield to your hand.
  6. When Parallax Tide leaves the battlefield, it triggers, returning all cards exiled with it to the battlefield.
  7. When the Islands enter the battlefield, Retreat to Coralhelm triggers four times, untapping Heidar, and allowing you to untap up to three other creatures you control and/or scry 1 up to three times.
  8. Repeat from step 2.
Results
Infinite blinking of lands you control. Infinite landfall triggers. Infinite mana basic lands you control can produce. Infinite mana creatures you control can produce. Infinite scry 1. Infinite storm count. Infinite untap of creatures you control.

Heidar, Rimewind Master
7.25% of 69 decks 5 decks
High Synergy Cards
The One Ring
100% of 5 decks +85% synergy
Scrying Sheets
80% of 5 decks +80% synergy
Stasis
80% of 5 decks +79% synergy
Burnished Hart
80% of 5 decks +72% synergy
Cyclonic Rift
100% of 5 decks +59% synergy
High Tide
100% of 5 decks +55% synergy
Swan Song
80% of 5 decks +54% synergy
Mystic Remora
80% of 5 decks +49% synergy
Counterspell
80% of 5 decks +11% synergy
Top Cards
Arcum's Astrolabe
80% of 5 decks +78% synergy
Coldsteel Heart
80% of 5 decks +77% synergy
Mind Stone
80% of 5 decks +39% synergy
Creatures
Rimewind Taskmage
60% of 5 decks +60% synergy
Aphetto Alchemist
60% of 5 decks +57% synergy
Vizier of Tumbling Sands
60% of 5 decks +57% synergy
Solemn Simulacrum
60% of 5 decks +37% synergy
Frost Augur
40% of 5 decks +40% synergy
Fatestitcher
40% of 5 decks +38% synergy
Silent Arbiter
40% of 5 decks +36% synergy
Scourge of Fleets
40% of 5 decks +26% synergy
Archaeomancer
40% of 5 decks +24% synergy
Hullbreaker Horror
40% of 5 decks +16% synergy
Icehide Golem
20% of 5 decks +20% synergy
Blizzard Strix
20% of 5 decks +20% synergy
Rimefeather Owl
20% of 5 decks +20% synergy
Pilfering Hawk
20% of 5 decks +20% synergy
Rimewind Cryomancer
20% of 5 decks +20% synergy
Avalanche Caller
20% of 5 decks +20% synergy
Icefall Regent
20% of 5 decks +20% synergy
Ascendant Spirit
20% of 5 decks +20% synergy
Tideforce Elemental
20% of 5 decks +19% synergy
Iceberg Cancrix
20% of 5 decks +19% synergy
Icebreaker Kraken
20% of 5 decks +19% synergy
Wall of Frost
20% of 5 decks +19% synergy
Clever Conjurer
20% of 5 decks +19% synergy
Barrin, Tolarian Archmage
20% of 5 decks +18% synergy
Chakram Retriever
20% of 5 decks +18% synergy
Kelpie Guide
20% of 5 decks +18% synergy
Thada Adel, Acquisitor
20% of 5 decks +18% synergy
Dreamscape Artist
20% of 5 decks +17% synergy
Mirran Spy
20% of 5 decks +17% synergy
Tidespout Tyrant
20% of 5 decks +16% synergy
Palladium Myr
20% of 5 decks +16% synergy
Walking Ballista
20% of 5 decks +16% synergy
Gadwick, the Wizened
20% of 5 decks +15% synergy
Arcanis the Omnipotent
20% of 5 decks +12% synergy
Mulldrifter
20% of 5 decks +12% synergy
Trophy Mage
20% of 5 decks +12% synergy
Peregrine Drake
20% of 5 decks +11% synergy
Displacer Kitten
20% of 5 decks +11% synergy
Tribute Mage
20% of 5 decks +9% synergy
Trinket Mage
20% of 5 decks +8% synergy
Consecrated Sphinx
20% of 5 decks +5% synergy
Thassa's Oracle
20% of 5 decks +4% synergy
Faerie Mastermind
20% of 5 decks +3% synergy
Instants
Sink into Stupor
100% of 1 decks +68% synergy
Muddle the Mixture
60% of 5 decks +43% synergy
Force of Negation
60% of 5 decks +42% synergy
Aetherize
60% of 5 decks +38% synergy
Fierce Guardianship
60% of 5 decks +35% synergy
Mystical Tutor
60% of 5 decks +31% synergy
Arcane Denial
60% of 5 decks +26% synergy
Negate
60% of 5 decks +20% synergy
Brainstorm
60% of 5 decks +15% synergy
Capsize
40% of 5 decks +35% synergy
Force of Will
40% of 5 decks +20% synergy
Dramatic Reversal
40% of 5 decks +17% synergy
Mana Drain
40% of 5 decks +12% synergy
Reality Shift
40% of 5 decks +10% synergy
An Offer You Can't Refuse
40% of 5 decks +7% synergy
Rapid Hybridization
40% of 5 decks +5% synergy
Pongify
40% of 5 decks -1% synergy
Graven Lore
20% of 5 decks +20% synergy
Long-Term Plans
20% of 5 decks +16% synergy
Brain Freeze
20% of 5 decks +16% synergy
Evacuation
20% of 5 decks +13% synergy
March of Swirling Mist
20% of 5 decks +11% synergy
Flusterstorm
20% of 5 decks +10% synergy
Mystic Confluence
20% of 5 decks +10% synergy
Pact of Negation
20% of 5 decks +8% synergy
Blue Sun's Zenith
20% of 5 decks +6% synergy
Narset's Reversal
20% of 5 decks +6% synergy
Whir of Invention
20% of 5 decks +5% synergy
Snap
20% of 5 decks +5% synergy
Resculpt
20% of 5 decks -3% synergy
Opt
20% of 5 decks -5% synergy
Sorceries
Fabricate
60% of 5 decks +36% synergy
Windfall
60% of 5 decks +35% synergy
Ponder
60% of 5 decks +28% synergy
Lórien Revealed
50% of 2 decks +38% synergy
Merchant Scroll
40% of 5 decks +27% synergy
Preordain
40% of 5 decks +12% synergy
Concentrate
20% of 5 decks +19% synergy
Aether Gale
20% of 5 decks +17% synergy
Polymorph
20% of 5 decks +17% synergy
Flood of Tears
20% of 5 decks +16% synergy
Time Warp
20% of 5 decks +13% synergy
Reshape
20% of 5 decks +11% synergy
Sea Gate Restoration
20% of 5 decks +5% synergy
Solve the Equation
20% of 5 decks +2% synergy
Utility Artifacts
Winter Moon
100% of 1 decks +92% synergy
Illusionist's Bracers
60% of 5 decks +57% synergy
Wayfarer's Bauble
60% of 5 decks +40% synergy
Thaumatic Compass
40% of 5 decks +39% synergy
Thousand-Year Elixir
40% of 5 decks +36% synergy
Winter Orb
40% of 5 decks +34% synergy
Sensei's Divining Top
40% of 5 decks +23% synergy
Isochron Scepter
40% of 5 decks +18% synergy
Lightning Greaves
40% of 5 decks +13% synergy
Swiftfoot Boots
40% of 5 decks +11% synergy
Sapphire Medallion
40% of 5 decks -6% synergy
Sunstone
20% of 5 decks +20% synergy
Icebind Pillar
20% of 5 decks +20% synergy
Surveyor's Scope
20% of 5 decks +19% synergy
Crawlspace
20% of 5 decks +17% synergy
Staff of Domination
20% of 5 decks +17% synergy
Moonsilver Key
20% of 5 decks +16% synergy
Mesmeric Orb
20% of 5 decks +16% synergy
Urza's Bauble
20% of 5 decks +16% synergy
Static Orb
20% of 5 decks +16% synergy
Codex Shredder
20% of 5 decks +14% synergy
Aetherflux Reservoir
20% of 5 decks +13% synergy
Sculpting Steel
20% of 5 decks +13% synergy
Rings of Brighthearth
20% of 5 decks +12% synergy
Mishra's Bauble
20% of 5 decks +11% synergy
Enchantments
Amphibian Downpour
100% of 1 decks +91% synergy
Marit Lage's Slumber
60% of 5 decks +59% synergy
Propaganda
60% of 5 decks +35% synergy
Rhystic Study
60% of 5 decks +21% synergy
Winter's Rest
40% of 5 decks +40% synergy
Reality Acid
40% of 5 decks +40% synergy
Dress Down
40% of 5 decks +37% synergy
Freed from the Real
40% of 5 decks +37% synergy
Training Grounds
40% of 5 decks +33% synergy
Back to Basics
40% of 5 decks +30% synergy
Imprisoned in the Moon
40% of 5 decks +28% synergy
Deep Freeze
20% of 5 decks +20% synergy
Parallel Thoughts
20% of 5 decks +20% synergy
Estrid's Invocation
20% of 5 decks +19% synergy
Time of Ice
20% of 5 decks +19% synergy
Frozen Aether
20% of 5 decks +19% synergy
Pemmin's Aura
20% of 5 decks +18% synergy
Archmage Ascension
20% of 5 decks +18% synergy
Search for Azcanta
20% of 5 decks +17% synergy
Dissipation Field
20% of 5 decks +17% synergy
Counterbalance
20% of 5 decks +15% synergy
Leyline of Anticipation
20% of 5 decks +9% synergy
Planeswalkers
Narset, Parter of Veils
60% of 5 decks +44% synergy
Tezzeret the Seeker
40% of 5 decks +29% synergy
Ugin, the Ineffable
20% of 5 decks +17% synergy
Utility Lands
Tolaria West
60% of 5 decks +53% synergy
Mystic Sanctuary
60% of 5 decks +6% synergy
Frostwalk Bastion
40% of 5 decks +40% synergy
Mouth of Ronom
40% of 5 decks +40% synergy
Faceless Haven
40% of 5 decks +40% synergy
Minamo, School at Water's Edge
40% of 5 decks +30% synergy
Academy Ruins
40% of 5 decks +22% synergy
Lotus Vale
20% of 5 decks +20% synergy
Lotus Field
20% of 5 decks +19% synergy
Arcane Lighthouse
20% of 5 decks +18% synergy
Maze of Ith
20% of 5 decks +15% synergy
Buried Ruin
20% of 5 decks +7% synergy
Nykthos, Shrine to Nyx
20% of 5 decks +4% synergy
Urza's Saga
20% of 5 decks +2% synergy
Otawara, Soaring City
20% of 5 decks -7% synergy
Reliquary Tower
20% of 5 decks -36% synergy
Mana Artifacts
Solar Transformer
100% of 1 decks +100% synergy
Arcane Signet
100% of 5 decks +35% synergy
Sol Ring
100% of 5 decks +13% synergy
Mana Vault
60% of 5 decks +47% synergy
Gilded Lotus
60% of 5 decks +47% synergy
Replicating Ring
40% of 5 decks +37% synergy
Gauntlet of Power
40% of 5 decks +35% synergy
Extraplanar Lens
40% of 5 decks +33% synergy
Basalt Monolith
40% of 5 decks +29% synergy
Thran Dynamo
40% of 5 decks +26% synergy
Everflowing Chalice
40% of 5 decks +22% synergy
Sky Diamond
40% of 5 decks +14% synergy
Thought Vessel
40% of 5 decks -11% synergy
Vessel of Endless Rest
20% of 5 decks +20% synergy
Patriar's Seal
20% of 5 decks +17% synergy
Coveted Jewel
20% of 5 decks +16% synergy
Grim Monolith
20% of 5 decks +14% synergy
Worn Powerstone
20% of 5 decks +14% synergy
Mox Amber
20% of 5 decks +13% synergy
Chrome Mox
20% of 5 decks +9% synergy
Lotus Petal
20% of 5 decks +8% synergy
Fellwar Stone
20% of 5 decks -0% synergy
Lands
Myriad Landscape
60% of 5 decks +32% synergy