First printed in Ravnica Allegiance (2019)
All 16 prints
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Secret Lair Countdown (SLC) #56, 2026
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Secret Lair Drop (SLD) #2827, 2026
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Secret Lair Drop (SLD) #7052, 2025
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URL/Convention Promos (PURL) #2025-5, 2025
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Ravnica Remastered (RVR) #32, 2024
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Tales of Middle-earth Commander (LTC) #179, 2023
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March of the Machine Commander (MOC) #213, 2023
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The Brothers' War Commander (BRC) #78, 2022
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Dominaria United Commander (DMC) #106, 2022
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Commander Legends: Battle for Baldur's Gate (CLB) #710, 2022
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Midnight Hunt Commander (MIC) #95, 2021
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Secret Lair Drop (SLD) #310, 2021
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Commander Legends (CMR) #388, 2020
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Ravnica Allegiance Promos (PRNA) #29p, 2020
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Ravnica Allegiance Promos (PRNA) #29s, 2019
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Ravnica Allegiance (RNA) #29, 2019
Unbreakable Formation 
Instant
Creatures you control gain indestructible until end of turn.
Addendum — If you cast this spell during your main phase, put a +1/+1 counter on each of those creatures and they gain vigilance until end of turn.
In the last 30 days 0.1% of Commander decks played it (5 of 6150). Most played in Sidar Jabari of Zhalfir.
Combos
6 combos from Commander Spellbook, the most popular first.
- Destroy all creatures opponents control, Near-infinite damage: Apex Altisaur + Unbreakable Formation + Wrathful Raptors
- Infinite artifact ETB, Infinite artifact LTB…: Krark-Clan Shaman + Sonic the Hedgehog + Unbreakable Formation
- Infinite +1/+1 counters on a creature, Infinite damage to one opponent: Boros Reckoner + Red Hulk + Unbreakable Formation
- Infinite +1/+1 counters on a creature, Infinite damage to one opponent: Red Hulk + Screaming Nemesis + Unbreakable Formation
- Infinite +1/+1 counters on a creature, Infinite damage to one opponent: Red Hulk + Spitemare + Unbreakable Formation
- Infinite +1/+1 counters on a creature, Infinite damage to one opponent: Ill-Tempered Loner // Howlpack Avenger + Red Hulk + Unbreakable Formation
Legality
Constructed
- Standard Not legal
- Pioneer Legal
- Modern Legal
- Legacy Legal
- Vintage Legal
- Pauper Not legal
- Future Standard Not legal
- Historic Legal
- Timeless Legal
- Alchemy Not legal
- Penny Dreadful Legal
- Premodern Not legal
- Old School 93/94 Not legal
Singleton
- Gladiator Legal
Commander formats
- Commander Legal
- Duel Commander Legal
- Pauper Commander Not legal
- PreDH Not legal
- Tiny Leaders Legal
- Oathbreaker Legal
- Brawl Legal
- Standard Brawl Not legal
- Competitive Brawl Legal
