Legendary Creature — Rat Rogue

Marrow-Gnawer

Mana value5EDHREC#2,920

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The Commander

All Rats have fear.

{T} , Sacrifice a Rat: Create X 1/1 black Rat creature tokens, where X is the number of Rats you control.

Guide

Gameplan

Marrow-Gnawer is a mono-black Rat tribal commander that snowballs token counts exponentially: sacrifice one Rat to make a number of tokens equal to how many Rats you already control. You build a wide board of Rats, activate the ability to double-plus your army, give them all evasion via Marrow-Gnawer's fear, and swing for lethal—often aided by an anthem or overrun effect. Early turns ramp and deploy cheap Rats; mid-game you snowball with the tap ability and protect the board.

Strengths

Exponential token generation that can produce a lethal army in a single turn once you have a few Rats
Built-in evasion (fear) makes the whole team nearly unblockable in most metas
Mono-black gives access to powerful ramp, tutors, and recursion
Wide boards synergize with aristocrats payoffs and overrun-style finishers

Weaknesses

Extremely vulnerable to board wipes; one Wrath can undo all your work
The combo relies on Marrow-Gnawer surviving and being untapped, so removal and tap-down effects hurt
Tribal Rats are a shallow card pool with many weak bodies
Summoning sickness and tap requirement mean it telegraphs the turn before it goes off
Fear doesn't stop artifact or black creatures from blocking

Key Cards

Ratadrabik of Urborg — While not a Rat himself in flavor he supports tokens, but more importantly mono-black token doublers like this amplify your output (use a true doubler).
Pack Rat — Discard a card to make a Rat, and Pack Rats grow with your swarm, providing extra bodies to fuel and benefit from Marrow-Gnawer.
Ogre Slumlord — Creates a 1/1 Rat whenever any nontoken creature dies, fueling your sacrifices and providing deathtouch anthem support.
Swarmyard — Regenerates your Rats, protecting Marrow-Gnawer and your key tokens from damage-based removal.
Coat of Arms — Turns a wide Rat board into a massive lethal swing with fear evasion.
Skullclamp — Sacrificing the 1/1 Rats draws two cards each, turning your expendable tokens into relentless card advantage.
Ashnod's Altar — Sacrifice Rats for mana to refuel and combo with token doublers and recursion.
Gravepact — Each Rat sacrifice or death forces opponents to sacrifice creatures, controlling the board.

Upgrade Path

Add token doublers (Doubling Season, Parallel Lives) and anthem/overrun effects (Coat of Arms, Shared Animosity, Craterhoof-style finishers in black via Overwhelming Stampede analogs) to make the exponential army immediately lethal. Lean into aristocrats (Blood Artist, Zulaport Cutthroat, Pitiless Plunderer) and free sac outlets (Ashnod's Altar, Carrion Feeder, Phyrexian Altar) so the deck wins through drain even into board wipes. Round out with strong mono-black staples—Demonic Tutor, Vampiric Tutor, Skullclamp, and protection like Swarmyard and Cavern of Souls—to find and shield your combo pieces.

Core Cards

The most-played cards for this commander, built from aggregated deck data (the Mythic Graph). Build public decks to seed it.

Win Conditions

▸Swing with a wide board of fear-having Rats, often pumped by Coat of Arms, Shared Animosity, or Overwhelming Stampede
▸Aristocrats drain via Blood Artist / Zulaport Cutthroat / Bastion of Remembrance off mass Rat sacrifices
▸Combo loops with Ashnod's Altar plus token doublers and recursion to generate overwhelming resources
▸Beatdown with evasive Pack Rats or a singular large threat after attrition

Archetypes

Tribal Aggro (Rats) — Marrow-Gnawer rewards going wide with Rats and gives them all evasion for fast aggressive wins.
Tokens — The sacrifice ability is an exponential token engine that flooding the board with Rats.
Aristocrats — Endless expendable Rat tokens pair perfectly with sacrifice payoffs like Blood Artist and Gravepact.
Combo — With sac outlets, token doublers, and altars you can generate near-infinite bodies or mana to close games.