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Decktrove
Unbreakable Formation
SLC · Secret Lair Countdown #56 · Rare · released 2026-11-02
{2}{W}
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.
Unbreakable Formation is a rare white instant from Secret Lair Countdown (2026). It has been printed 16 times across 13 sets, from 2019 to 2026. Recent market prices range from $0.80 to $28.91 depending on printing and finish. It is legal in Pioneer, Modern, Legacy, Vintage, Commander, Oathbreaker, Historic, Brawl and Penny Dreadful.
Format legality
Where you can play Unbreakable Formation in sanctioned and popular formats.
StandardNot legal
PioneerLegal
ModernLegal
LegacyLegal
VintageLegal
CommanderLegal
PauperNot legal
OathbreakerLegal
HistoricLegal
BrawlLegal
Penny DreadfulLegal
All printings (16)
Prices range from $0.80 to $28.91 across finishes. Cheapest printing: Commander Legends at $0.80.
| Set | No. | Rarity | Price | Foil |
|---|---|---|---|---|
| Ravnica Allegiance Promos | 29s | Rare | — | $2.25 |
| Ravnica Allegiance | 29 | Rare | $0.81 | $2.50 |
| Ravnica Allegiance Promos | 29p | Rare | $1.51 | $2.25 |
| Commander Legends | 388 | Rare | $0.80 | — |
| Secret Lair Drop | 310 | Rare | $3.13 | $2.82 |
| Midnight Hunt Commander | 95 | Rare | $0.93 | — |
| Commander Legends: Battle for Baldur's Gate | 710 | Rare | $1.25 | — |
| Dominaria United Commander | 106 | Rare | $0.80 | — |
| The Brothers' War Commander | 78 | Rare | $0.99 | — |
| March of the Machine Commander | 213 | Rare | $1.38 | — |
| Tales of Middle-earth Commander | 179 | Rare | $0.91 | — |
| Ravnica Remastered | 32 | Rare | $1.81 | $1.61 |
| URL/Convention Promos | 2025-5 | Rare | — | $28.91 |
| Secret Lair Drop | 7052 | Rare | $1.34 | $2.24 |
| Secret Lair Drop | 2827 | Rare | — | — |
| Secret Lair Countdown This page | 56 | Rare | — | — |
More from Secret Lair Countdown
Rulings
Official rulings from Wizards of the Coast (3).
- 2024-01-12Addendum abilities of instant spells apply while the spell is resolving, not immediately after casting it. If the spell is countered, you don't get the addendum bonus.
- 2024-01-12If an effect copies a spell with an addendum ability while it's on the stack, the copy wasn't cast at all, so you won't get the addendum bonus.
- 2019-01-25Unbreakable Formation affects only creatures you control at the time it resolves. Creatures you begin to control later in the turn won't gain indestructible or vigilance and they won't get a +1/+1 counter.
Frequently asked questions
Is Unbreakable Formation legal in Commander?
Yes — Unbreakable Formation is legal in Commander (EDH).
What formats is Unbreakable Formation legal in?
Unbreakable Formation is legal in Pioneer, Modern, Legacy, Vintage, Commander, Oathbreaker, Historic, Brawl and Penny Dreadful.
How many times has Unbreakable Formation been printed?
Unbreakable Formation has been printed 16 times across 13 sets, from 2019 to 2026.
What is the cheapest printing of Unbreakable Formation?
The cheapest printing is Commander Legends (#388) at about $0.80.
Who illustrated Unbreakable Formation?
This printing of Unbreakable Formation was illustrated by Dan Dos Santos.