Cast Bonus Round by paying {1}{R}{R}, causing each player to copy each instant or sorcery spell they cast this turn.
Cast Flicker by paying {1}{W}, targeting Hag Hedge-Mage.
Bonus Round triggers, copying Flicker targeting Quintorius Kand.
Resolve the copy of Flicker, blinking Quintorius Kand.
Resolve the original Flicker, blinking Hag Hedge-Mage.
When Hag Hedge-Mage enters the battlefield, its second ability triggers, putting Flicker on top of your library from your graveyard.
Activate Quintorius Kand's second loyalty ability by removing three loyalty counters from it, causing you to exile Flicker from the top of your library and cast it without paying its mana cost, targeting Hag Hedge-Mage.
Quintorius Kand and Bonus Round trigger.
Resolve the Quintorius Kand trigger, dealing 2 damage to each opponent and causing you to gain 2 life.
Resolve the Bonus Round trigger, copying Flicker targeting Quintorius Kand.
Repeat from step 4.

Infinite damage

Infinite ETB

Infinite lifegain

Infinite lifegain triggers

Infinite LTB

Infinite magecraft triggers

Infinite storm count

Quintorius Kand

Flicker

Bonus Round

Hag Hedge-Mage

Cast Flicker by paying {1}{W}, targeting Hag Hedge-Mage.
Thousand-Year Storm triggers, copying Flicker at least once, with each copy targeting Quintorius Kand.
Resolve the first copy of Flicker, blinking Quintorius Kand.
Any remaining copies of Flicker fizzle due to having no legal target.
Resolve the original Flicker, blinking Hag Hedge-Mage.
When Hag Hedge-Mage enters the battlefield, its second ability triggers, putting Flicker on top of your library from your graveyard.
Activate Quintorius Kand's second loyalty ability by removing three loyalty counters from it, causing you to exile Flicker from the top of your library and cast it without paying its mana cost, targeting Hag Hedge-Mage.
Quintorius Kand and Thousand-Year Storm trigger.
Resolve the Quintorius Kand trigger, dealing 2 damage to each opponent and causing you to gain 2 life.
Resolve the Thousand-Year Storm trigger, copying Flicker at least twice, with each copy targeting Quintorius Kand.
Repeat from step 3.
You may optionally target any permanent using the additional Flicker copies to blink them.

Infinite blinking of permanents

Infinite landfall triggers

Infinite mana lands you control can produce

Thousand-Year Storm

At the beginning of your precombat main phase, The Mirari Conjecture triggers, putting a lore counter on it, and then causing you to copy any instant or sorcery spell you cast this turn and sacrifice The Mirari Conjecture.
Cast Flicker by paying {1}{W}, targeting Hag Hedge-Mage.
The Mirari Conjecture triggers, copying Flicker targeting Quintorius Kand.
Resolve the copy of Flicker, blinking Quintorius Kand.
Resolve the original Flicker, blinking Hag Hedge-Mage.
When Hag Hedge-Mage enters the battlefield, its second ability triggers, putting Flicker on top of your library from your graveyard.
Activate Quintorius Kand's second loyalty ability by removing three loyalty counters from it, causing you to exile Flicker from the top of your library and cast it without paying its mana cost, targeting Hag Hedge-Mage.
Quintorius Kand and The Mirari Conjecture trigger.
Resolve the Quintorius Kand trigger, dealing 2 damage to each opponent and causing you to gain 2 life.
Resolve the The Mirari Conjecture trigger, copying Flicker targeting Quintorius Kand.
Repeat from step 4.

The Mirari Conjecture

Cast Flicker by paying {1}{W}, targeting Hag Hedge-Mage.
Swarm Intelligence triggers, copying Flicker targeting Quintorius Kand.
Resolve the copy of Flicker, blinking Quintorius Kand.
Resolve the original Flicker, blinking Hag Hedge-Mage.
When Hag Hedge-Mage enters the battlefield, its second ability triggers, putting Flicker on top of your library from your graveyard.
Activate Quintorius Kand's second loyalty ability by removing three loyalty counters from it, causing you to exile Flicker from the top of your library and cast it without paying its mana cost, targeting Hag Hedge-Mage.
Quintorius Kand and Swarm Intelligence trigger.
Resolve the Quintorius Kand trigger, dealing 2 damage to each opponent and causing you to gain 2 life.
Resolve the Swarm Intelligence trigger, copying Flicker targeting Quintorius Kand.
Repeat from step 3.

Swarm Intelligence

Combos with "Hag Hedge-Mage"