Unbreakable Formation

Public decks that run Unbreakable Formation

• Arm for Battle - Commander Legends, led by Wyleth, Soul of Steel
• Bangarang!, led by Derevi, Empyrial Tactician
• Cavalry Charge - March of the Machine Commander, led by Sidar Jabari of Zhalfir
• Coven Counters - Midnight Hunt Commander, led by Leinore, Autumn Sovereign
• Legends' Legacy - Dominaria United, led by Dihada, Binder of Wills
• Party Time - Commander Legends: Battle for Baldur's Gate, led by Nalia de'Arnise
• Riders of Rohan - Tales of Middle-earth Commander, led by Éowyn, Shieldmaiden
• Urza's Iron Alliance - The Brothers' War Commander, led by Urza, Chief Artificer

Commanders that run Unbreakable Formation most

Deck counts from EDHREC.

• Éowyn, Shieldmaiden: 9,806 decks
• Sidar Jabari of Zhalfir: 8,132 decks
• Giada, Font of Hope: 6,552 decks
• Isshin, Two Heavens as One: 5,236 decks
• Urza, Chief Artificer: 4,542 decks
• Rin and Seri, Inseparable: 3,247 decks
• Myrel, Shield of Argive: 3,170 decks
• Sonic the Hedgehog: 3,149 decks

Often played with Unbreakable Formation

Cards that show up in the same decks on EDHREC.

• Wire Surgeons
• Denethor, Stone Seer
• Ethersworn Adjudicator
• Tawnos, Solemn Survivor
• Wreck Hunter
• Locthwain Lancer
• Xerex Strobe-Knight
• Boromir, Gondor's Hope
• Archivist of Gondor
• Smitten Swordmaster

Rulings

• 2019-01-25: Unbreakable 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.
• 2024-01-12: If 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.
• 2024-01-12: Addendum 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.