Thousand Moons Infantry 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
Untap this creature during each other player's untap step.
Complete guide
Mastering the flow of combat often requires your troops to be ready at a moment's notice. Thousand Moons Infantry is a resilient Soldier that ensures your defenses are never down, even after a heavy assault. This card's unique ability allows it to ignore the typical restrictions of turn cycles by refreshing itself during your opponents' turns.
Always Ready for Duty
Thousand Moons Infantry possesses a static ability that modifies the rules of the untap step. Specifically, it untaps during each other player's untap step in addition to your own. This happens simultaneously with the active player's permanents, meaning it doesn't use the stack and cannot be responded to.
Step-by-Step Resolution
First, the active player starts their turn with the untap step. Second, all permanents the active player controls untap. Simultaneously, Thousand Moons Infantry untaps because of its ability. Third, the game proceeds to the upkeep. Because this happens during the untap step, no player receives priority to cast spells or activate abilities until the untap process is fully complete.
Common Pitfalls
A common mistake is thinking you can choose to keep Thousand Moons Infantry tapped to avoid certain effects; however, untapping is mandatory. Additionally, if an effect like 'stun counters' or a specific spell prevents it from untapping during your own untap step, those restrictions usually do not apply to the 'each other player's untap step' clause unless the effect broadly forbids untapping entirely.
Strategic Timing
This card is best utilized in decks that want to attack aggressively while maintaining a blocker. Since it untaps on every opponent's turn, it is also an excellent candidate for abilities that require tapping as a cost, as the 'cooldown' period is effectively removed in multiplayer games.
Interaction examples
You attack with Thousand Moons Infantry during your turn, leaving it tapped. As soon as your opponent begins their turn, the Infantry untaps during their untap step. You now have a fresh blocker available to defend against their creatures.
If you use an effect to give Thousand Moons Infantry a tapping utility, such as an aura or equipment, you can use it every turn. While Solemn Simulacrum provides you with a basic land and card draw, the Infantry ensures that your board presence remains upright and ready to protect your newly played lands.
If you name 'Human' or 'Soldier' with Roaming Throne, it's important to note that Thousand Moons Infantry's ability is static, not triggered. Therefore, Roaming Throne will not cause the Infantry to untap 'twice' or generate extra triggers, as the untap effect simply happens as a state of the game.
Guide written with AI from the official text and rulings. Official English text prevails.
How it works : Thousand Moons Infantry
Original English text — Wizards of the Coast / Scryfall
- #1· Wizards of the Coast
Thousand Moons Infantry still untaps during your untap step as normal.
No other card is named in this ruling.
- #2· Wizards of the Coast
Thousand Moons Infantry untaps at the same time as the active player's permanents. You can't choose not to untap it at that time.
No other card is named in this ruling.
- #3· Wizards of the Coast
If an effect states that Thousand Moons Infantry doesn't untap during your untap step, that effect won't apply during another player's untap step.
No other card is named in this ruling.
Legal formats
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Meta decks with Thousand Moons Infantry
No archived Top 8 deck with this card yet.



Solemn Simulacrum
Roaming Throne