Arcane Signet

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

Orzhov Signet

Boros Signet

Sol Ring

Golgari Signet

Dimir Signet

Simic Signet

Izzet Signet

Azorius Signet

Gruul Signet

Niv-Mizzet, Guildpact

Flying, hexproof from multicolored
Whenever Niv-Mizzet, Guildpact deals combat damage to a player, it deals X damage to any target, target player draws X cards, and you gain X life, where X is the number of different color pairs among permanents you control that are exactly two colors.

Selesnya Signet

Worn Powerstone

Worn Powerstone enters tapped.
{T}: Add {C}{C}.

Rakdos Signet

Have

Getting

Don't Have

5 color