The ratio of successful attacks to misses from an attacker on a certain target is called attack accuracy. It is presented as a percent.
For example, if monster A attacks monster B, hits it 3 times, and misses 1 time, it has an attack accuracy of 75%.
Attack accuracy generally makes sense for Melee and Range attackers, because they can miss. If the target has the Phase ability, then Magic attackers can miss too, and their accuracy can be lower than 100%.
Attack accuracy can be influenced by the speed differential between monsters (10% per speed unit gap), and also by abilities.
The higher the speed gap, the higher the chance of a miss if the attacker is the slowest monster. At the same time, if the attacker is the quickest monster, the attack has a higher chance to hit the target. In the reverse speed ruleset, things are the exact opposite.
Attack accuracy is also influenced by these abilities:
See also Attack Type.
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