Released · Set Guide

March of the Machine

Battles are the first new card type since planeswalkers, and this is where they arrived.

ReleasedApr 21, 2023
PrereleaseApr 14–20, 2023
Set CodesMOM · MOC · MUL
Mechanics4
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Release dateApril 21, 2023
PrereleaseApril 14–20, 2023
Set codesMOM · MOC · MUL
New card typeBattle

The set that added a card type

What this set is

March of the Machine is the payoff to the Phyrexian arc, and it carries the single biggest rules addition of the year: battle, the first new card type since planeswalkers. All thirty-six of them are Sieges.

A Siege enters under your control but you choose an opponent to protect it. It has defense counters, anyone can attack it, and if you remove the last counter you get to cast the card on its back face. Damage dealt to it is not damage dealt to a player, which is what keeps it from simply being a second life total.

Themes

Every mechanic in March of the Machine

New

Battle (Siege)

A new card type. You cast a Siege and pick an opponent to protect it; it enters with defense counters and can be attacked like a planeswalker. Strip the counters and you cast its back face for free. The protector is the reason it plays as a race rather than a free spell.

New

Backup

An enters-the-battlefield trigger. Put a +1/+1 counter on a target creature, and if that is a different creature it also gains this one's other abilities until end of turn. Handing an evasive body a keyword for a turn is usually worth more than the counter.

New

Incubate

Incubate N makes a colourless Incubator artifact token with N +1/+1 counters on it. Pay two generic mana to transform it into a 0/0 Phyrexian artifact creature that those counters then size. A creature you buy in two instalments.

Returning

Convoke

Tap any number of untapped creatures you control as you cast a spell, each paying for one generic mana or one mana of that creature's colour. Pairs with incubate and the set's token production almost too well.

Where You Can Play It

Format legality

March of the Machine has left Standard, but that is the only format it left. Here's where each code is legal now.

March of the Machine has already left Standard. It belonged to the rotation year that ended when Wilds of Eldraine arrived in September 2023, which is why the two later 2023 sets are still legal and this one isn't. A rotation only ever removes cards from Standard, so everything here is still playable in Pioneer, Modern, Legacy, Vintage and Commander. Commons from any set are Pauper-legal; that isn't listed per set here.

Limited

Ten draft archetypes

A full ten-pair format, and an unusually multicolour one. The set is built on two-colour legendary pairs, so the mana supports splashing further than most.

All ten two-colour pairs

Full ten-pair format

Battles sit across the whole format rather than in two or three pairs, because every colour got Sieges. Backup concentrates in the aggressive pairs and incubate in the slower ones.

Commander

The five Commander decks

One per major faction of the invasion, and the largest precon slate of the year.

Call for Backup

Commander precon

Built on the set's backup mechanic.

Cavalry Charge

Commander precon

Aggressive and go-wide.

Divine Convocation

Commander precon

Leans on convoke and token production.

Growing Threat

Commander precon

Incubate and Phyrexian threats.

Tinker Time

Commander precon

Artifacts and the set's machine theme.

Building one of these into something of your own? The precon buying guide covers how to judge a deck, and the Commander deck template is the shape to build toward.

FAQ

Common questions

What is a battle card in MTG?

Battle is a card type introduced in March of the Machine. Every battle in the set is a Siege: you cast it and choose an opponent to protect it, it enters with defense counters, and anyone can attack it. Remove the last counter and you cast the card on its back face for free.

Is March of the Machine still Standard legal?

No. It rotated out of Standard along with the rest of the sets released before Wilds of Eldraine. MOM cards remain legal in Pioneer, Modern, Legacy, Vintage and Commander.

How does backup work?

It is an enters-the-battlefield trigger. Put a +1/+1 counter on a target creature, and if that is a different creature it also gains the backup creature's other abilities until end of turn. Giving an evasive creature a keyword for a turn is usually the stronger half.

What does incubate do?

Incubate N creates a colourless Incubator artifact token with N +1/+1 counters. Pay two generic mana to transform it into a 0/0 Phyrexian artifact creature, which those counters then size. You are buying a creature in two instalments.

Is Multiverse Legends Standard legal?

No. Multiverse Legends is a bonus sheet, and a bonus-sheet printing does not change a card's legality. Each card stays legal wherever it already was, and the sheet itself is a Commander, Legacy and Vintage product.

How many Commander decks did March of the Machine have?

Five, the largest slate of the year: Call for Backup, Cavalry Charge, Divine Convocation, Growing Threat and Tinker Time.

Playing March of the Machine in Commander?

TurnZero HQ keeps deck records, MMR, and moments for every Commander night, so you can see which new cards are actually earning their slot.

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