Martial Coup

Mana cost: {X}{W}{W}
Type: Sorcery
Set: Conflux #11 (rare)
Price: $0.65 USD

Create X 1/1 white Soldier creature tokens. If X is 5 or more, destroy all other creatures.

Martial Coup has 17 printings, first in Conflux (2009). EDHREC ranks it #1,328 among Commander cards. It appears most in Caesar, Legion's Emperor decks (12,831 on EDHREC). 11 public decks on TCG run it. It has 3 official rulings.

Legality

commander: legal
legacy: legal
vintage: legal
pauper: not legal
modern: legal
pioneer: not legal
standard: not legal
brawl: not legal

Public decks that run Martial Coup

Adaptive Enchantment - Commander 2018, led by Estrid, the Masked
Arm for Battle - Commander Legends, led by Wyleth, Soul of Steel
Break the Chains, led by Caesar, Legion's Emperor
Cabaretti Cacophony - New Capenna Commander, led by Kitt Kanto, Mayhem Diva
Family Matters - Bloomburrow Commander, led by Zinnia, Valley's Voice
Forces of the Imperium - Warhammer 40,000 Commander, led by Inquisitor Greyfax
Forged in Stone - Commander 2014, led by Nahiri, the Lithomancer
Hail, Caesar - Fallout, led by Caesar, Legion's Emperor
Multiverse Reforged - Reality Fracture, led by Jace, Multiverse Architect
Rebellion Rising - Phyrexia: All Will Be One Commander, led by Neyali, Suns' Vanguard
Wakanda Forever - Marvel Super Heroes, led by T'Challa, the Black Panther

Commanders that run Martial Coup most

Deck counts from EDHREC.

Often played with Martial Coup

Cards that show up in the same decks on EDHREC.

Rulings

2009-02-01: Martial Coup checks the number you chose for X, not the amount of mana you actually spent.
2009-02-01: You do what the spell says in order. If X is 5 or more, you'll put the Soldier tokens onto the battlefield, then you'll destroy all other creatures.
2009-02-01: No one can cast spells or activate abilities between the time the Soldier tokens are put onto the battlefield and the time all other creatures are destroyed. For example, you can't sacrifice one of those Soldier tokens to regenerate a Skeletal Kathari.