Rings of Brighthearth + Voltaic Key + Candelabra of Tawnos + High Tide

Rings of Brighthearth
Voltaic Key
Candelabra of Tawnos
High Tide

Requires
Rings of Brighthearth must be on the battlefield. Voltaic Key must be on the battlefield. Candelabra of Tawnos must be on the battlefield. High Tide must be in hand. You control at least two Islands. Mana needed:
Steps
  1. Cast High Tide by paying , causing all Islands to add an additional when they are tapped for mana this turn.
  2. Activate two Islands you control by tapping them, adding .
  3. Activate Candelabra of Tawnos by paying 2 and tapping it.
  4. Rings of Brighthearth triggers, causing you to pay 2 to copy Candelabra of Tawnos' ability.
  5. Resolve the first Candelabra of Tawnos ability, untapping the two Islands.
  6. Activate two Islands you control by tapping them, adding .
  7. Resolve the second Candelabra of Tawnos ability, untapping the two Islands.
  8. Activate Voltaic Key by paying 1 and tapping it.
  9. Rings of Brighthearth triggers, causing you to pay 2 to copy Voltaic Key's ability.
  10. Resolve both Voltaic Key abilities, untapping Voltaic Key and Candelabra of Tawnos.
  11. Repeat from step 2.
Results
Infinite mana artifacts you control can produce. Infinite mana lands you control can produce. Infinite untap of artifacts you control. Infinite untap of lands you control.

Memnarch
0.14% of 1469 decks 2 decks
Bruvac the Grandiloquent
0.02% of 5029 decks 1 decks
Jin-Gitaxias
0.03% of 2925 decks 1 decks
Teferi, Temporal Archmage
0.10% of 955 decks 1 decks
Emry, Lurker of the Loch
0.02% of 4198 decks 1 decks
Urza, Lord High Artificer
0.01% of 12657 decks 1 decks
Lier, Disciple of the Drowned
0.10% of 1006 decks 1 decks
Ormos, Archive Keeper
0.32% of 312 decks 1 decks
Ojer Pakpatiq, Deepest Epoch
0.08% of 1189 decks 1 decks
Alaundo the Seer
0.04% of 2493 decks 1 decks
Azami, Lady of Scrolls
0.03% of 3557 decks 1 decks
High Synergy Cards
Isochron Scepter
83% of 12 decks +81% synergy
Dramatic Reversal
83% of 12 decks +78% synergy
Fabricate
75% of 12 decks +69% synergy
Magosi, the Waterveil
67% of 12 decks +67% synergy
Force of Negation
67% of 12 decks +58% synergy
Cyclonic Rift
83% of 12 decks +55% synergy
Mystical Tutor
67% of 12 decks +52% synergy
Merchant Scroll
50% of 12 decks +48% synergy
The One Ring
56% of 9 decks +47% synergy
Academy Ruins
50% of 12 decks +45% synergy
Top Cards
Grim Monolith
75% of 12 decks +73% synergy
Basalt Monolith
75% of 12 decks +72% synergy
Mana Vault
67% of 12 decks +60% synergy
Rhystic Study
67% of 12 decks +39% synergy
Mystic Remora
58% of 12 decks +40% synergy
Fierce Guardianship
50% of 12 decks +32% synergy
Counterspell
50% of 12 decks +7% synergy
Transmute Artifact
42% of 12 decks +41% synergy
Sapphire Medallion
42% of 12 decks +39% synergy
Trinket Mage
42% of 12 decks +39% synergy
Creatures
Thassa's Oracle
42% of 12 decks +34% synergy
Filigree Sages
33% of 12 decks +33% synergy
Pili-Pala
33% of 12 decks +33% synergy
Grand Architect
33% of 12 decks +33% synergy
Urza, Lord High Artificer
33% of 12 decks +30% synergy
Spellseeker
33% of 12 decks +30% synergy
Laboratory Maniac
33% of 12 decks +29% synergy
Displacer Kitten
33% of 12 decks +28% synergy
Hullbreaker Horror
33% of 12 decks +26% synergy
Metalworker
25% of 12 decks +25% synergy
Snapcaster Mage
25% of 12 decks +23% synergy
Gilded Drake
25% of 12 decks +23% synergy
Etherium Sculptor
25% of 12 decks +19% synergy
Instants
Mana Drain
83% of 12 decks +68% synergy
Force of Will
75% of 12 decks +64% synergy
Blue Sun's Zenith
42% of 12 decks +39% synergy
Whir of Invention
42% of 12 decks +38% synergy
Narset's Reversal
42% of 12 decks +38% synergy
Flusterstorm
42% of 12 decks +35% synergy
Swan Song
42% of 12 decks +25% synergy
Mental Misstep
33% of 12 decks +27% synergy
Pact of Negation
33% of 12 decks +26% synergy
Pongify
33% of 12 decks +22% synergy
Long-Term Plans
25% of 12 decks +24% synergy
Turnabout
25% of 12 decks +24% synergy
Capsize
25% of 12 decks +24% synergy
Misdirection
25% of 12 decks +23% synergy
Thought Scour
25% of 12 decks +23% synergy
Brain Freeze
25% of 12 decks +22% synergy
Mindbreak Trap
25% of 12 decks +21% synergy
Muddle the Mixture
25% of 12 decks +20% synergy
Resculpt
25% of 12 decks +20% synergy
Rapid Hybridization
25% of 12 decks +16% synergy
Opt
25% of 12 decks +15% synergy
Frantic Search
25% of 12 decks +13% synergy
Arcane Denial
25% of 12 decks +5% synergy
An Offer You Can't Refuse
25% of 12 decks +4% synergy
Brainstorm
25% of 12 decks +4% synergy
Sorceries
Solve the Equation
25% of 12 decks +20% synergy
Utility Artifacts
Sensei's Divining Top
33% of 12 decks +28% synergy
Tormod's Crypt
25% of 12 decks +24% synergy
Manifold Key
25% of 12 decks +23% synergy
Unwinding Clock
25% of 12 decks +22% synergy
Enchantments
Power Artifact
33% of 12 decks +33% synergy
Mind Over Matter
33% of 12 decks +33% synergy
Back to Basics
33% of 12 decks +32% synergy
Freed from the Real
25% of 12 decks +23% synergy
Planeswalkers
Tezzeret the Seeker
33% of 12 decks +31% synergy
Jace, Wielder of Mysteries
25% of 12 decks +21% synergy
Utility Lands
Ancient Tomb
58% of 12 decks +48% synergy
Urza's Saga
50% of 12 decks +43% synergy
Nykthos, Shrine to Nyx
42% of 12 decks +36% synergy
Mystic Sanctuary
42% of 12 decks +29% synergy
Reliquary Tower
42% of 12 decks +12% synergy
Minamo, School at Water's Edge
25% of 12 decks +21% synergy
Seat of the Synod
25% of 12 decks +19% synergy
Otawara, Soaring City
25% of 12 decks +8% synergy
Mana Artifacts
Sol Ring
100% of 12 decks +16% synergy
Mana Crypt
75% of 12 decks +66% synergy
Arcane Signet
58% of 12 decks -14% synergy
Mox Opal
42% of 12 decks +37% synergy
Gilded Lotus
33% of 12 decks +30% synergy
Thran Dynamo
33% of 12 decks +28% synergy
Chrome Mox
33% of 12 decks +27% synergy
Lotus Petal
33% of 12 decks +27% synergy
Thought Vessel
33% of 12 decks +17% synergy
Gauntlet of Power
25% of 12 decks +24% synergy
Mox Diamond
25% of 12 decks +21% synergy
Everflowing Chalice
25% of 12 decks +20% synergy
Fellwar Stone
25% of 12 decks +4% synergy
Lands
Scalding Tarn
25% of 12 decks +14% synergy