Selesnya Signet

Commander's Sphere

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

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

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

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

This land enters tapped unless you control two or more other lands.
{T}: Add {G} or {W}.

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

Flying, hexproof
Spells and abilities your opponents control can't cause you to sacrifice permanents.

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

This land enters tapped unless you control a Forest or a Plains.
{T}: Add {G} or {W}.

({T}: Add {G} or {W}.)
This land enters tapped unless you control two or more basic lands.