Deal combat damage to an opponent using Angel of Destiny.
Angel of Destiny's first ability triggers, causing you and the opponent to gain life equal to the damage dealt.
Move to your postcombat main phase.
Cast Seize the Day by paying {3}{R}, untapping Angel of Destiny and causing you to get an additional combat and main phase after this one.
Repeat steps 1 through 3 one additional time, attacking a different opponent.
Cast Seize the Day from your graveyard for its flashback cost by paying {2}{R}, untapping Angel of Destiny and causing you to get an additional combat and main phase after this one.
Repeat steps 1 through 3 one additional time, attacking a different opponent.
At the beginning of your end step, Angel of Destiny triggers, causing each opponent it attacked this turn to lose the game.

Each opponent loses the game

Angel of Destiny

Seize the Day

Cast Prossh by paying {3}{B}{R}{G} and commander tax, if applicable.
Prossh triggers, creating at least six 0/1 Kobold of Kher Keep creature tokens.
Activate Prossh six times by sacrificing six Kobold of Kher Keep tokens, giving Prossh +6/+0 until end of turn.
At the beginning of your combat phase, Xenagos triggers, giving Prossh +X/+X and haste until end of turn, where X is Prossh's power.
Deal combat damage to an opponent using Prossh, causing an opponent to be dealt at least twenty-two commander damage.
The opponent loses the game due to being dealt twenty-one or more combat damage by your commander.
Move to your postcombat main phase.
If Seize the Day is in your hand, cast it by paying {3}{R}.
Otherwise, cast it from your graveyard for its flashback cost by paying {2}{R}.
Resolve Sieze the Day, untapping Prossh and causing you to get an additional combat phase and main phase after this one.
Repeat from step 4 until each opponent has lost the game.

Near-infinite combat damage

Prossh, Skyraider of Kher

Xenagos, God of Revels

Deal combat damage to an opponent using the creature with Sword of Hearth and Home attached.
Sword of Hearth and Home and Sword of Feast and Famine trigger.
Resolve the Sword of Hearth and Home trigger, blinking Ardent Elementalist and causing you to search your library for a basic land card and put it onto the battlefield.
Ardent Elementalist enters the battlefield, returning Seize the Day from your graveyard to your hand.
Resolve the Sword of Feast and Famine trigger, causing you to untap all lands you control, and causing the defending player to discard a card.
Move to your postcombat main phase.
Activate any number of lands you control by tapping them, adding at least {3}{R}.
Cast Seize the Day by paying {3}{R}, causing you to untap the creature with Sword of Hearth and Home attached and to get an additional combat and main phase after this one.
 Repeat.

Infinite combat damage

Infinite combat phases

Infinite creature ETB

Infinite creature LTB

Infinite magecraft triggers

Infinite storm count

Near-infinite landfall triggers

Put all basic lands from your library onto the battlefield

Infinite mana lands you control can produce

Infinite untap of lands you control

Sword of Feast and Famine

Sword of Hearth and Home

Ardent Elementalist

Deal combat damage to an opponent using the creature with Sword of Hearth and Home attached.
Sword of Hearth and Home and Sword of Feast and Famine trigger.
Resolve the Sword of Hearth and Home trigger, blinking Archaeomancer and causing you to search your library for a basic land card and put it onto the battlefield.
Archaeomancer enters the battlefield, returning Seize the Day from your graveyard to your hand.
Resolve the Sword of Feast and Famine trigger, causing you to untap all lands you control, and causing the defending player to discard a card.
Move to your postcombat main phase.
Activate any number of lands you control by tapping them, adding at least {3}{R}.
Cast Seize the Day by paying {3}{R}, causing you to untap the creature with Sword of Hearth and Home attached and to get an additional combat and main phase after this one.
 Repeat.

Archaeomancer

Combos with "Seize the Day"