Cast Transcendence by paying {3}{W}{W}{W}.
Transcendence triggers due to you having 20 or more life. However, you cannot lose the game due to the creature with Cloudsteel Kirin attached.
Step 2 repeats in an infinite loop, causing the game to end in a draw if it isn't interacted with.

Draw the game

Transcendence

Cloudsteel Kirin

Activate Wall of Blood by paying life.
Repeat step 1 until you have 0 life.
Cast Mister Negative by paying {5}{W}{B} plus commander tax if applicable.
When Mister Negative enters, it triggers, swapping your life total with an opponent's.
The opponent loses the game due to having 0 life.

Near-infinite lifeloss for target opponent

Target opponent loses the game

Mister Negative

Wall of Blood

Cast Ad Nauseam by paying {3}{B}{B}.
Resolve Ad Nauseam, revealing the top card of your library, putting that card into your hand and losing life equal to that card's mana value.
Repeat the process in step 2 as many times as desired.

Infinite card draw

Ad Nauseam

Cast Fractured Identity by paying {3}{W}{U}, exiling Nine Lives and causing each opponent to create a token copy of it.
Nine Lives leaves the battlefield, however you cannot lose the game due to Cloudsteel Kirin.
Cast Austere Command by paying its mana cost, destroying all enchantments.
When each opponent's Nine Lives leaves the battlefield, they each trigger, causing each opponent to lose the game.

Each opponent loses the game

Nine Lives

Fractured Identity

Austere Command

Activate Goblin Bombardment by sacrificing another creature, dealing 1 damage to you, with you being unable to lose the game due to Cloudsteel Kirin.
Darien triggers, creating a 1/1 Soldier creature token.
Repeat.

Infinite creature tokens

Infinite creature ETB

Infinite damage

Infinite creature LTB

Infinite creature sacrifice triggers

Infinite death triggers

Darien, King of Kjeldor

Goblin Bombardment

Cause a creature to enter the battlefield under your control.
Pandemonium triggers, dealing damage to you equal to the creature's power, with you being unable to lose the game due to Cloudsteel Kirin.
Darien triggers, creating a number of 1/1 Soldier creature tokens equal to the damage dealt to you.
When the Soldiers enter the battlefield, Pandemonium triggers that many times.
Resolve the first trigger, dealing 1 damage to you, with you being unable to lose the game due to Cloudsteel Kirin.
Repeat from step 3.

Pandemonium

Cause a creature to enter the battlefield under your control.
Warstorm Surge triggers, dealing damage to you equal to the creature's power, with you being unable to lose the game due to Cloudsteel Kirin.
Darien triggers, creating a number of 1/1 Soldier creature tokens equal to the damage dealt to you.
When the Soldiers enter the battlefield, Warstorm Surge triggers that many times.
Resolve the first trigger, dealing 1 damage to you, with you being unable to lose the game due to Cloudsteel Kirin.
Repeat from step 3.

Warstorm Surge

Cause a creature to enter the battlefield under your control.
Terror of the Peaks triggers, dealing damage to you equal to the creature's power, with you being unable to lose the game due to Cloudsteel Kirin.
Darien triggers, creating a number of 1/1 Soldier creature tokens equal to the damage dealt to you.
When the Soldiers enter the battlefield, Terror of the Peaks triggers that many times.
Resolve the first trigger, dealing 1 damage to you, with you being unable to lose the game due to Cloudsteel Kirin.
Repeat from step 3.

Terror of the Peaks

Activate Frenetic Efreet an arbitrarily large number of times by paying {0}.
Resolve a Frenetic Efreet ability, causing you to flip a coin.
Karplusan Minotaur triggers. If you won the flip, it deals 1 damage to any target you choose. If you lost the flip, it deals 1 damage to a target of an opponent's choosing. You cannot lose the game due to this damage due to Cloudsteel Kirin, and Karplusan Minotaur cannot be destroyed due to its indestructibility or protection.
Repeat from step 2.

Infinite lifegain

Infinite lifegain triggers

Frenetic Efreet

Karplusan Minotaur

Draw a card.
Niv-Mizzet triggers, dealing 1 damage to you.
Vilis triggers, causing you to draw a card.
Repeat from step 2 until your library is empty, preventing a game loss with Cloudsteel Kirin.

Combos with "Cloudsteel Kirin"