Glossary:Attack Roll
From DDO Compendium
Official Game Entry
Attack Roll
A roll to determine whether an attack hits. To make an attack roll, you roll one twenty-sided die (1d20) and add the appropriate modifiers for the attack type, as follows: melee attack roll = 1d20 + base attack bonus + Strength modifier + size modifier; ranged attack roll = 1d20 + base attack bonus + Dexterity modifier + size modifier + range penalty. In either case, the attack hits if the result is at least as high as the target’s Armor Class.

- Automatic Hit
- Automatic Miss
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