Mind Stone

{T}: Add {C}.
{1}, {T}, Sacrifice this artifact: Draw a card.

Fellwar Stone

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

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

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

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

Lands you control have "{T}: Add one mana of any color."
{T}: Add one mana of any color.

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

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