Thought Vessel

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

Azorius Signet

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

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

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

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

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

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

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

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

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

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

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