Boros Signet

Fellwar Stone

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

{2}, {T}, Sacrifice this artifact: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

{T}: Add {C}.
{T}: Add {W} or {U}. This artifact deals 1 damage to you.

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

{T}: Add {C}.
{T}: Add {W} or {B}. This artifact deals 1 damage to you.

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

{T}: Add {C}.
{T}: Add {G} or {W}. This artifact deals 1 damage to you.

{T}: Add {C}.
{T}: Add {G} or {U}. This artifact deals 1 damage to you.

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

{T}: Add {C}.
{T}: Add {U} or {B}. This artifact deals 1 damage to you.

{T}: Add {C}.
{T}: Add {B} or {G}. This artifact deals 1 damage to you.

{T}: Add {C}.
{T}: Add {B} or {R}. This artifact deals 1 damage to you.

{T}: Add {C}.
{T}: Add {R} or {G}. This artifact deals 1 damage to you.

{T}: Add {C}.
{T}: Add {R} or {W}. This artifact deals 1 damage to you.

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