Sigil of the Wests

{t}: Add {w} or {b} to your mana pool.
Whenever this artifact land is tapped for mana,
create a 1/1 Human creature token with indestructible.
{2}{w}{b}: Sigil of the Wests becomes
an X/X creature where X is the number of
creatures you control and gains indestructible.
"Two lefts may not make a right but two Wests make everything ALL RIGHT!"