Rules Text Contains: T: Add C.
T: Add one mana of any color. Spend this mana only to cast an Assassin spell or a spell that has freerunning, or to activate an ability of an Assassin source.
Flavor:"Monteriggioni will outlast her enemies.”
—Mario Auditore
![Brotherhood Headquarters [ACR - 80] - Cartes Sportives Rive Sud](http://cartessportivesrivesud.com/cdn/shop/files/brotherhood-headquarters-acr-80-magic-the-gathering-singles-7995757-87309428_{width}x.jpg?v=1753663110)
![Brotherhood Headquarters [ACR - 80] - Cartes Sportives Rive Sud](http://cartessportivesrivesud.com/cdn/shop/files/brotherhood-headquarters-acr-80-magic-the-gathering-singles-7995757-87309428_1024x.jpg?v=1753663110)