Scrolls are the basis of Spelldom's ranking system. When you attack other players, you can steal their Scrolls. Conversely, other players can steal your Scrolls when they attack you. You don't win Scrolls for successful defenses or lose them for failed attacks.
You can steal lots of Scrolls from players who have more Scrolls than you, while you can only steal a few Scrolls from players that have fewer Scrolls. The more stars you earn in your attack, the more Scrolls you win.
You can earn Blue Scrolls if you're on a team. You win them in attacks, just as you would standard Scrolls. The number of Blue Scrolls available to steal in an attack is your opponent's Castle level. Your Blue Scroll holdings are reset each week at the end of the Blue Scroll Tournament.