Legendary Creature — Rat Warlock

Ashcoat of the Shadow Swarm

Mana value4EDHREC#5,090

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The Commander

Whenever Ashcoat attacks or blocks, other Rats you control get +X/+X until end of turn, where X is the number of Rats you control.

At the beginning of your end step, you may mill four cards. If you do, return up to two Rat creature cards from your graveyard to your hand. (To mill a card, put the top card of your library into your graveyard.)

Guide

Gameplan

Flood the board with cheap Rats, then swing wide with an anthem that scales off your own creature count for explosive, often-lethal alpha strikes. Ashcoat's end-step mill+return engine keeps your hand stocked with the best Rats from the graveyard, so you grind out card advantage while rebuilding after board wipes.

Strengths

Recursive card advantage that makes board wipes far less punishing
Anthem effect scales hard in go-wide token strategies, enabling one-shot kills
Mono-black gives access to premium ramp, tutors, and removal
Self-mill synergizes with reanimation and graveyard payoffs

Weaknesses

Relies on Ashcoat connecting in combat, so removal or chump blocks blunt the payoff
Vulnerable to board wipes that hit before you've rebuilt
Mono-color means no interaction with countermagic or flexible removal beyond black's tools
Self-mill can deck you out in very long games and exiles graveyard hate hurts the engine

Key Cards

Marrow-Gnawer — Sacrifices a Rat to make a token army equal to your Rat count, instantly powering Ashcoat's anthem to lethal.
Pack Rat — A repeatable token-and-discard engine that grows your board and the anthem each activation.
Swarm of Rats — A Rat whose power scales with the swarm, reinforcing the go-wide plan.
Relentless Rats — Lets you run unlimited copies that buff each other and flood the field cheaply.
Coat of Arms — Stacks with Ashcoat's anthem to make even a modest Rat board overwhelming.
Cabal Coffers — Black ramp that fuels mass token production and reanimation.

Upgrade Path

Add fast mana and tutors like Dark Ritual, Demonic Tutor, and Vampiric Tutor to assemble Marrow-Gnawer plus an anthem faster. Lean into payoffs such as Skullclamp for card draw off tokens, Cabal Stronghold/Nykthos for explosive mana, and Living Death or Reanimate to exploit the self-mill. Tighten the curve with cheap protection (Heroic Intervention's black analog, Malakir Rebirth) and a Craterhoof-style finisher like Overwhelming Stampede to convert wide boards into immediate wins.

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

▸Alpha strike with Ashcoat's scaling anthem for one-shot commander damage or wide lethal
▸Marrow-Gnawer plus Coat of Arms creating an overwhelming Rat army
▸Aristocrats drain via repeated Rat sacrifice and recursion
▸Combat damage grinding opponents down while recurring threats post-wipe

Archetypes

Tribal Aggro (Rats) — Ashcoat directly buffs and recurs Rats, making wide tribal beatdown the core plan.
Tokens — The anthem scales with creature count, rewarding Marrow-Gnawer and Pack Rat token swarms.
Aristocrats — Sacrificing Rats with Marrow-Gnawer pairs with drain effects, and Ashcoat recurs the fodder.
Reanimator — Built-in self-mill enables black reanimation spells to cheat in big threats or recur Rats.