Arcane Signet

Artifact

{T}: Add one mana of any color in your commander's color identity.

CMC
2
Mana cost
{2}
Color identity
C
Rarity
common
Set
Warhammer 40,000 Commander
Price
EDHREC rank
#3
Buy on TCGplayer
Arcane Signet card art
Arcane Signet is an auto-include in nearly every Commander deck — a two-mana rock that taps for any color in your commander's identity, no hoops required. The one real trade-off: it doesn't help commanders like Kinnan, Bonder Prodigy whose payoffs care specifically about non-Arcane mana sources, and it's a dead draw in a deck helmed by Abdel Adrian, Gorion's Ward that wants to flicker artifacts for value — but in any other shell, cutting it is the mistake.

Where It Shines

Where the extra mana on turn one matters most

03

Big-mana shells like Ms. Bumbleflower

Ms. Bumbleflower rewards snowballing early and Arcane Signet is the cleanest way to get there, turning a three-land opener into a four-mana turn three while fixing whatever colors the gameplan demands.

Format Analysis

Where it lives, where it can’t

FormatVerdict
commander
legacy
modern
pioneer
standard
vintage
pauper
oathbreaker

Arcane Signet is legal in Commander, Legacy, Modern, Pioneer, Vintage, Pauper, and Oathbreaker — but Commander is the only format where it's genuinely excellent. In 60-card formats the slot competition is brutal: Modern and Pioneer have access to faster, more format-warping acceleration, and Legacy runs free spells that make a two-mana do-nothing rock embarrassing. Pauper legality is notable since mana fixing at common is harder to come by, but even there the card slots are tight. Oathbreaker mirrors the Commander case closely — it's a staple for the same reasons.

Key Combos

Combo lines featuring this card

Price Context

Current price

unknown tier

Arcane Signet has been reprinted aggressively across precons and supplemental products, which keeps the price floor low and copies widely available. Check your local game store's bulk bins before paying singles prices — you'll almost certainly find one for under a dollar.

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