Cloudsteel Kirin — ruling 1

No game effect can cause you to lose the game or cause any opponent to win the game while you control a creature equipped with Cloudsteel Kirin. It doesn't matter whether you have 0 or less life, you're forced to draw a card while your library is empty, you have ten or more poison counters, you're at the end of your Nine Lives, your opponent is a Triskaidekaphile, or so on. You keep playing.

Cloudsteel Kirin — ruling 2

Other circumstances can still cause you to lose the game. For example, you will lose a game if you concede or if you're penalized with a Game Loss or a Match Loss during a sanctioned tournament due to a tournament rules infraction.

Cloudsteel Kirin — ruling 3

If you control a creature equipped with Cloudsteel Kirin in a Two-Headed Giant game, your team can't lose the game and the opposing team can't win the game.

Cloudsteel Kirin — ruling 4

If you have 0 or less life while Cloudsteel Kirin is equipped to a creature, activating reconfigure to attach Cloudsteel Kirin to another creature you control doesn't cause you to lose the game. You would lose the game if Cloudsteel Kirin becomes unattached or becomes attached to a creature you don't control.

Cloudsteel Kirin — ruling 5

Reconfigure represents two activated abilities. Reconfigure [cost] means “[Cost]: Attach this permanent to another target creature you control. Activate only as a sorcery,” and “[Cost]: Unattach this permanent. Activate only if this permanent is attached to a creature and only as a sorcery.”

Cloudsteel Kirin — ruling 6

Attaching an Equipment with reconfigure to a creature causes that Equipment to stop being a creature until it becomes unattached. It also loses any creature subtypes it had.

Cloudsteel Kirin — ruling 7

An Equipment doesn't become tapped when the permanent it's attached to becomes tapped. For example, if you attack with a creature that is equipped with Acquisition Octopus, then use reconfigure to unattach Acquisition Octopus after combat, the Octopus will be untapped and could be used to block during your opponent's turn.

Cloudsteel Kirin — ruling 8

Similarly, if an Equipment is tapped, its reconfigure abilities may still be activated and it may still become attached to creatures. Becoming attached doesn't untap it. In most cases, an attached Equipment being tapped won't affect gameplay, but it will be relevant if it becomes unattached again before it untaps.

Cloudsteel Kirin : règles, fonctionnement et interactions (MTG)

Cloudsteel Kirin is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

Flying Equipped creature has flying and "You can't lose the game and your opponents can't win the game." Reconfigure (: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

Complete guide

Cloudsteel Kirin is a powerful defensive tool from Kamigawa: Neon Dynasty that can single-handedly keep you in the game when all hope seems lost. By utilizing the reconfigure mechanic, this Kirin transforms from a flying creature into a protective suit of armor that prevents your defeat.

Staying in the Fight

The primary function of Cloudsteel Kirin is its ability to grant the equipped creature a game-altering effect: you cannot lose the game, and your opponents cannot win. This protection covers all standard losing conditions, such as having zero or less life, attempting to draw from an empty library, or accumulating ten poison counters. As long as the Kirin remains attached to a creature you control, the game simply continues regardless of these states.

How Reconfigure Works

Reconfigure is a versatile keyword that functions differently than standard Equip abilities. When you pay the reconfigure cost of {5}, you can either attach Cloudsteel Kirin to a creature you control or unattach it to turn it back into a creature. While it is attached, it ceases to be a creature and becomes an Equipment artifact. This process can only be done at sorcery speed, meaning during your main phase when the stack is empty.

Common Mistakes

A frequent misconception is that Cloudsteel Kirin makes you immortal in every sense. It does not prevent you from losing due to tournament infractions or conceding the game. Additionally, if you have 0 or less life and the creature equipped with Cloudsteel Kirin leaves the battlefield, or if the Kirin itself is destroyed or unattached, you will lose the game immediately as a state-based action. You can, however, move the Kirin from one creature directly to another using reconfigure without losing the game during the transition.

When to Play It

Cloudsteel Kirin is best utilized when you are facing decks that win through unconventional means or massive burst damage. Since it has Flying, it can serve as an early-game attacker or blocker. Once your life total is threatened, you should reconfigure it onto a creature with high toughness or protection (like Ward) to ensure the 'can't lose' effect is as difficult for your opponent to remove as possible.

Interaction examples

Basic Protection

You have Cloudsteel Kirin equipped to a creature. An opponent attacks you for 50 damage while you are at 10 life. Your life total drops to -40. Because the Kirin is equipped, you do not lose the game. On your next turn, you can still play cards and attack as normal even with a negative life total.

Double Triggers with Roaming Throne

Roaming Throne

If you have Roaming Throne on the battlefield and chose 'Kirin' as its type, it doesn't actually affect the reconfigure ability or the 'can't lose' effect, as those are activated and static abilities, not triggered abilities. However, if you attach Cloudsteel Kirin to Roaming Throne, the Throne gains flying and the protection effect. This is a strong choice because Roaming Throne's Ward {2} makes it harder for opponents to target and destroy the creature protecting your life total.

Filtering for Answers

Solemn Simulacrum

If you are at 0 life and have Cloudsteel Kirin equipped to a Solemn Simulacrum, you are still in the game. If you need to find a way to gain life or win, you could potentially use the Kirin to stay alive while using the Simulacrum to block. If the Simulacrum dies, its triggered ability lets you draw a card, but be careful: the moment the Simulacrum leaves the battlefield, the Kirin becomes a creature again and is no longer equipping anything. If your life is still 0 or less at that moment, you will lose the game immediately.

Guide written with AI from the official text and rulings. Official English text prevails.

How it works : Cloudsteel Kirin

Original English text — Wizards of the Coast / Scryfall

#1February 18, 2022· Wizards of the Coast
No game effect can cause you to lose the game or cause any opponent to win the game while you control a creature equipped with Cloudsteel Kirin. It doesn't matter whether you have 0 or less life, you're forced to draw a card while your library is empty, you have ten or more poison counters, you're at the end of your Nine Lives, your opponent is a Triskaidekaphile, or so on. You keep playing.
No other card is named in this ruling.
#2February 18, 2022· Wizards of the Coast
Other circumstances can still cause you to lose the game. For example, you will lose a game if you concede or if you're penalized with a Game Loss or a Match Loss during a sanctioned tournament due to a tournament rules infraction.
No other card is named in this ruling.
#3February 18, 2022· Wizards of the Coast
If you control a creature equipped with Cloudsteel Kirin in a Two-Headed Giant game, your team can't lose the game and the opposing team can't win the game.
No other card is named in this ruling.
#4February 18, 2022· Wizards of the Coast
If you have 0 or less life while Cloudsteel Kirin is equipped to a creature, activating reconfigure to attach Cloudsteel Kirin to another creature you control doesn't cause you to lose the game. You would lose the game if Cloudsteel Kirin becomes unattached or becomes attached to a creature you don't control.
No other card is named in this ruling.
#5February 18, 2022· Wizards of the Coast
Reconfigure represents two activated abilities. Reconfigure [cost] means “[Cost]: Attach this permanent to another target creature you control. Activate only as a sorcery,” and “[Cost]: Unattach this permanent. Activate only if this permanent is attached to a creature and only as a sorcery.”
No other card is named in this ruling.
#6February 18, 2022· Wizards of the Coast
Attaching an Equipment with reconfigure to a creature causes that Equipment to stop being a creature until it becomes unattached. It also loses any creature subtypes it had.
No other card is named in this ruling.
#7February 18, 2022· Wizards of the Coast
An Equipment doesn't become tapped when the permanent it's attached to becomes tapped. For example, if you attack with a creature that is equipped with Acquisition Octopus, then use reconfigure to unattach Acquisition Octopus after combat, the Octopus will be untapped and could be used to block during your opponent's turn.
No other card is named in this ruling.
#8February 18, 2022· Wizards of the Coast
Similarly, if an Equipment is tapped, its reconfigure abilities may still be activated and it may still become attached to creatures. Becoming attached doesn't untap it. In most cases, an attached Equipment being tapped won't affect gameplay, but it will be relevant if it becomes unattached again before it untaps.
No other card is named in this ruling.
#9February 18, 2022· Wizards of the Coast
If an Equipment with reconfigure somehow loses its abilities while it is attached, the effect causing it to not be a creature continues to apply until it becomes unattached.
No other card is named in this ruling.
#10February 18, 2022· Wizards of the Coast
As soon as an Equipment creature with reconfigure stops being a creature, any Equipment and Auras with enchant creature abilities become unattached. Auras that can enchant an Equipment that isn't a creature remain attached to it.
No other card is named in this ruling.
#11February 18, 2022· Wizards of the Coast
An Equipment creature with reconfigure can be attached to creatures by effects other than its reconfigure ability, such as the activated ability of Brass Squire.
No other card is named in this ruling.
#12February 18, 2022· Wizards of the Coast
Although it causes an Equipment to become attached to a creature, reconfigure is not an “equip ability” for the purpose of cards like Fighter Class and Leonin Shikari.
No other card is named in this ruling.
#13February 18, 2022· Wizards of the Coast
An Equipment creature can never become attached to itself. If an effect tries to do this, nothing happens.
No other card is named in this ruling.
#14February 18, 2022· Wizards of the Coast
If a permanent with reconfigure is somehow still a creature after it becomes attached (perhaps due to an effect like that of March of the Machines), it immediately becomes unattached from the equipped creature.
No other card is named in this ruling.