Sanctum Sanctorium

Sanctums enter and stay tapped until you control 3 sanctums, in which case you gain an emblem with, "Sanctums you control untap as normal. Spells you
control have flash."
Spells you cast cost {1} less to cast.
{1}{t}: Create X X/X blue and white sorcerer
creature token, where X is the number of
sanctums you control.
{5}: Search your library for a sanctum and put it
into your hand.