Command Tower

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

Island

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

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

Menace
Whenever Obeka, Splitter of Seconds deals combat damage to a player, you get that many additional upkeep steps after this phase.

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

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

You have no maximum hand size.
{T}: Add one mana of any color.

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

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