An attack roll is built from a base 11, plus the attackers OCV, plus any applicable modifiers (this can be negative, especially for ranged attacks), minus 3d6.  The result is the highest DCV the attack can hit.<br/><br/>Stardust's standard attack roll would look like this : 11 + 5ocv - 3d6.<br/><br/>Anyways, since this is play by post I can help as needed with attack rolls and such as they come up.  The more they're used the easier it gets to remember what to add, I know it took me a couple months before I understood how the base 11 fit in.