| this is a copy-paste from some info site, sorcerers.net, i guess:
When a character attempts to roll a saving throw, a random number from 1-20 is generated. The character's saving throw bonus, and modifiers, are applied to that roll. If their sum is equal to or greater than the DC (difficulty check) of the attack, they successfully save. While some saving throw DCs are arbitrarily derived (a dragon's breath, for instance), most spells are derived using the following formula:
Spell Level + Caster's Ability Bonus + 10 = Spell DC.
E.g., Marfain Vaer casts a fireball. She is a sorcerer with a 16 Charisma. Since fireball is a 3rd level spell, and her ability score modifier is +3, the DC of her spell is 16 (3 + 3 + 10 = 16). |