Simic Signet

Sol Ring

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

{T}: Add one mana of any color in your commander's color identity.
Sacrifice Commander's Sphere: Draw a card.

Fire Diamond enters tapped.
{T}: Add {R}.

{T}: Add one mana of any color that a land an opponent controls could produce.

Marble Diamond enters tapped.
{T}: Add {W}.

Charcoal Diamond enters tapped.
{T}: Add {B}.

Moss Diamond enters tapped.
{T}: Add {G}.