Chamber Sentry

Artifact Creature — Construct

This creature enters with a +1/+1 counter on it for each color of mana spent to cast it.
{X}, {T}, Remove X +1/+1 counters from this creature: It deals X damage to any target.
{W}{U}{B}{R}{G}: Return this card from your graveyard to your hand.

CMC
0
Mana cost
{X}
Color identity
BGRUW
Rarity
rare
Set
Guilds of Ravnica
Price
$0.21
EDHREC rank
#24262
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Chamber Sentry card art
Chamber Sentry enters with X +1/+1 counters for each color you spent casting it, then lets you pay {<span class="card-name deferred">X</span>} and remove X counters to ping for X damage — repeated, activated removal stapled to a body. Rocksteady, Mutant Marauder and other multicolor-counter commanders push Chamber Sentry from a flexible beater into a genuine engine piece.

Format Analysis

Where it lives, where it can’t

FormatVerdict
commander
legacy
modern
pioneer
standard
vintage
pauper
oathbreaker

Commander is where Chamber Sentry does its best work — five-color and multicolor-matters decks can drop it for five or more counters, making the ping activation immediately threatening. In Modern and Pioneer it's a niche pick at best, too slow and mana-intensive for formats that demand faster bodies. Legacy and Vintage have no interest; the payoff requires substantial mana investment that those formats punish. Chamber Sentry is a Commander card through and through.

Key Combos

Combo lines featuring this card

Price Context

Current price

$0.21 bulk tier

At $0.21, Chamber Sentry is deep bulk — easy to pick up as a throw-in or cheap order filler. It's unlikely to spike unless a breakout multicolor-counter commander drives sustained demand, so grab it now if the deck calls for it and don't worry about the price moving.

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