Assassin's Creed (acr) | ||
| #80 ⸱ Uncommon ⸱ English | ||
 Variations : 1Parts— | Brotherhood Headquarters : Add  .: 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.
LegalitiesLegal Duel Legacy Modern Vintage Commander Oathbreaker Not Legal Brawl Penny Predh Future Pauper Alchemy Pioneer Historic Standard Timeless Gladiator Oldschool Premodern Standardbrawl Paupercommander Rulings“Assassin sources” include any objects with the Assassin creature type. This means you could spend the mana to activate an ability of a permanent with changeling (a keyword ability that gives it all creature types) or an Assassin card in your hand or graveyard, for example.
You can use the mana produced by Brotherhood Headquarters’s last ability to cast a spell with freerunning even if you’re not paying that spell’s freerunning cost.
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