3e SRD:Attack Roll
Attack Roll
Description: The character attacks an opponent in a space that character threatens. The attack roll is:
d20 + Attack modifiers vs. AC of target
If the modified attack roll is equal to or greater than the AC of the target, the attack is successful. The attack may also be a Threat. See Critical Hits and Dealing Damage, below, for more details.
Automatic Misses and Hits
A natural 1 on the d20 is always a miss, and a natural 20 on the d20 is always a hit.
Attack Bonus
Attack modifiers consist of the character's base attack bonus, size adjustment, strength adjustment, and any other bonuses that apply to the attack roll.
Attack modifiers consist of the character's base attack bonus, size adjustment, dexterity adjustment, and any other bonuses that apply to the attack roll. Each range increment of distance between the character and the target after the first will impose a penalty, per the weapon description.
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