Cast Mox Diamond from your graveyard by paying {0} and 3 life.
Aetherflux Reservoir triggers, causing you to gain 1 life for each spell you've cast this turn.
Resolve the Mox Diamond spell, choosing to not have it enter the battlefield and be put into your graveyard instead.
Repeat

Infinite damage

Infinite lifegain triggers

Infinite lifegain

Infinite storm count

Noctis, Prince of Lucis

Aetherflux Reservoir

Mox Diamond

Activate Emry by tapping it, targeting Mox Diamond.
Cast Mox Diamond from your graveyard by paying {0}.
Mirran Spy triggers, untapping Emry.
Choose to sacrifice Mox Diamond instead of having it enter the battlefield.
Repeat.

Emry, Lurker of the Loch

Mirran Spy

If needed, activate Lightning Greaves' equip ability by paying {0}, attaching it to Emry.
Activate Emry by tapping it, allowing you to cast Mox Diamond from your graveyard.
Cast Mox Diamond by paying {0}.
Displacer Kitten triggers, blinking Emry.
When Emry enters, it triggers, causing you to mill four cards.
Choose to sacrifice Mox Diamond instead of having it enter the battlefield.
Repeat.

Infinite LTB

Infinite ETB

Displacer Kitten

Lightning Greaves

Activate Emry by tapping it, targeting Mox Diamond.
Cast Mox Diamond from your graveyard by paying {0}.
Chakram Retriever triggers, untapping Emry.
Choose to sacrifice Mox Diamond instead of having it enter the battlefield.
Repeat.

Chakram Retriever

Activate Emry by tapping it, allowing you to cast Mox Diamond from your graveyard.
Cast Mox Diamond by paying {0}.
Displacer Kitten triggers, blinking Emry.
When Emry enters, it triggers, causing you to mill four cards.
Choose to sacrifice Mox Diamond instead of having it enter the battlefield.
Repeat.

Infinite self-mill

Thousand-Year Elixir

Activate Emry by tapping it, targeting Mox Diamond.
Cast Mox Diamond from your graveyard by paying {0}.
Displacer Kitten triggers, blinking Corridor Monitor.
When Corridor Monitor enters, it triggers, untapping Emry.
Choose to sacrifice Mox Diamond instead of having it enter the battlefield.
Repeat.

Corridor Monitor

Cast Mox Diamond either from your hand or from the top of your library by paying {0}.
Choose to sacrifice Mox Diamond instead of having it enter the battlefield.
Ich-Tekik's second ability triggers, putting a +1/+1 counter on it and each Golem you control.
Activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting Mox Diamond from your graveyard onto the top of your library.
Repeat.

Infinite +1/+1 counters on a creature

Infinite +1/+1 counters on Golems you control

Ich-Tekik, Salvage Splicer

Arcbound Reclaimer

Mystic Forge

Cast Mox Diamond either from your hand or from the top of your library by paying {0}
Showdown of the Skalds triggers, putting a +1/+1 counter on Arcbound Reclaimer.
Choose to sacrifice Mox Diamond instead of having it enter the battlefield.
Activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting Mox Diamond from your graveyard onto the top of your library.
Repeat.

Showdown of the Skalds

Cast Mox Diamond either from your hand or from the top of your library by paying {0} or 0 life.
Choose to sacrifice Mox Diamond instead of having it enter the battlefield.
Ich-Tekik's second ability triggers, putting a +1/+1 counter on it and each Golem you control.
Activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting Mox Diamond from your graveyard onto the top of your library.
Repeat.

Bolas's Citadel

Cast Mox Diamond by paying {0}.
Mox Diamond enters the battlefield as a copy of Cavalier of Dawn.
Copy of Cavalier of Dawn enter-the-battlefield ability triggers, destroying itself and creating you a 3/3 Golem token.
Copy of Cavalier of Dawn dies, triggering itself, returning Mox Diamond from your graveyard to your hand.
Repeat.

Infinite creature tokens

Infinite death triggers

Cavalier of Dawn

Infinite Reflection

March of the Machines

Cast Mox Diamond either from your hand by paying {0} or from the top of your library by paying 0 life.
Showdown of the Skalds triggers, putting a +1/+1 counter on Arcbound Reclaimer.
Choose to sacrifice Mox Diamond instead of having it enter the battlefield.
Activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting Mox Diamond from your graveyard onto the top of your library.
Repeat.

Combos with "Mox Diamond"