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Coat of Arms

Artifact

Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it. (For example, if two Goblin Warriors and a Goblin Shaman are on the battlefield, each gets +2/+2.)

CMC
5
Mana cost
{5}
Color identity
C
Rarity
rare
Set
Eighth Edition
Price
—
EDHREC rank
#955
Buy on TCGplayer
Coat of Arms card art
Coat of Arms turns any tribal board into a lethality check — ten Goblins don't get +1/+1 each, they get +9/+9 each, and that math ends games on the spot. The risk is real: at five mana it's slow enough that opponents see it coming, and any deck sharing your creature type, like the Salamander tokens Gor Muldrak, Amphinologist forces onto everyone or the Squirrels Scurry Oak generates, gets the same bonus you do.

Best Commanders

Commanders with the highest synergy

01
Gor Muldrak, Amphinologist

Gor Muldrak, Amphinologist

45.2% of decks · synergy 0.44

Gor Muldrak, Amphinologist forces Salamander tokens onto opponents, so Coat of Arms can pump your board and theirs simultaneously — the build handles that tension by going wider faster and attacking before the gift turns into a liability.

02
Rendmaw, Creaking Nest

Rendmaw, Creaking Nest

42.7% of decks · synergy 0.38

Rendmaw, Creaking Nest generates a stream of Insect tokens whenever creatures die, and Coat of Arms converts that death-fueled swarm into a board that closes immediately rather than grinding over several turns.

03
Marrow-Gnawer

Marrow-Gnawer

34.9% of decks · synergy 0.32

Marrow-Gnawer produces Rats at exponential speed, and Coat of Arms is the card that makes a critical mass of 1/1s into a one-shot kill — it appears in over a third of Marrow-Gnawer lists for exactly that reason.

04
Ashcoat of the Shadow Swarm

Ashcoat of the Shadow Swarm

28.7% of decks · synergy 0.26

Ashcoat of the Shadow Swarm recurs Rats from the graveyard and grows them, making it straightforward to rebuild after a wipe; Coat of Arms ensures that when the board is full again, any attack is the last one needed.

05
Krenko, Mob Boss

Krenko, Mob Boss

27.8% of decks · synergy 0.23

Krenko, Mob Boss can double the Goblin count every turn, and Coat of Arms is the finisher that turns a large but otherwise modest board into lethal power — it shows up in more than a quarter of Krenko lists as the primary anthem payoff.

Format Analysis

Where it lives, where it can’t

FormatVerdict
commander legal
legacy legal
modern legal
pioneer not legal
standard not legal
vintage legal
pauper not legal
oathbreaker legal

Commander is where Coat of Arms lives — tribal strategies are endemic to the format, games go long enough to cast a five-mana artifact, and the bonus scales with table-wide board states in a way no other format replicates. In Legacy and Vintage it's technically legal but irrelevant; five mana at sorcery speed doesn't match the pace of those formats, and dedicated tribal builds rarely surface in competitive play there. Oathbreaker can support it in the same way Commander does, provided the signature spell and planeswalker are tribal-adjacent enough to flood the board. The short version: build it in Commander, ignore it everywhere else.

Key Combos

Combo lines featuring this card

Price Context

Current price

unknown tier

Coat of Arms has been reprinted multiple times, which has kept it accessible relative to its power level — check current listings on Scryfall or TCGPlayer for the most accurate price before buying. It's the kind of card worth picking up whenever a reprint brings the price down, since its demand in tribal Commander is essentially permanent.

Explore

Sources

Mentioned

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Updated . Data from Scryfall, EDHREC, and Commander Spellbook.