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Duergar Mine-Captain

Creature — Dwarf Soldier

{1}{R/W}, {Q}: Attacking creatures get +1/+0 until end of turn. ({Q} is the untap symbol.)

CMC
3
Mana cost
{2}{R/W}
Color identity
RW
Rarity
uncommon
Set
Eventide
Price
$0.26
EDHREC rank
#23974
Buy on TCGplayer
Duergar Mine-Captain card art
Duergar Mine-Captain taps all creatures an opponent controls — repeatedly, at instant speed, for one white or red mana each activation — which translates to a near-permanent soft lock once you have a way to untap it. The cost is the setup: without an untap engine, it's a forgettable 2/1, but Tazri, Stalwart Survivor and similar party-matters commanders unlock the loop with trivial effort.

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 Duergar Mine-Captain actually matters — the combination of a three-player threat environment and untap-matters commanders makes the tap-all activation punishing enough to build around. In Legacy and Vintage it's legal but irrelevant; both formats move too fast for a 2/1 with an activated ability to affect the game. Modern is similarly hostile — the card simply doesn't match the power level of what's happening on turn two and three. Oathbreaker is the one non-Commander 60-card-adjacent format where a tap-all loop can steal games, provided your planeswalker enables the untap reliably.

Key Combos

Combo lines featuring this card

Price Context

Current price

$0.26 bulk tier

At $0.26, Duergar Mine-Captain is deep bulk — easy to acquire as a throw-in or cheap single. That price is stable; demand is narrow enough that it won't spike without a high-profile Commander printing that explicitly rewards the tap-all loop.

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Sources

Mentioned

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