Yargle, Glutton of Urborg

Ur-Golem's Eye

Star Compass enters tapped.
{T}: Add one mana of any color that a basic land you control could produce.

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

When Mana Geode enters, scry 1.
{T}: Add one mana of any color.

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

As this artifact enters, choose a color.
Creatures you control of the chosen color get +1/+0.
{T}: Add one mana of the chosen color.

{T}: Add {C}{C}.
{2}, {T}, Sacrifice this artifact: Draw two cards.

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

{T}: Add {C}.
{1}, {T}: Add one mana of any color.