Charcoal Diamond

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

Fire Diamond

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

You have no maximum hand size.
{T}: Add {C}.

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

{T}: Add {C}.
{1}, {T}, Sacrifice Mind Stone: Draw a card.

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

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

{T}: Add {C}.
{T}: Target nonland permanent becomes an artifact in addition to its other types until end of turn.

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