A deflection bonus applies against touch attacks.Ī dodge bonus improves Armor Class (and sometimes Reflex saves) resulting from physical skill at avoiding blows and other ill effects. Deflection bonuses stack with all other bonuses to AC except other deflection bonuses. Multiple competence bonuses don't stack only the highest bonus applies.Ī deflection bonus affects Armor Class and is granted by a spell or magic effect that makes attacks veer off harmlessly. It does not apply on ability checks, damage rolls, initiative checks, or other rolls that aren't related to a character's level or skill ranks. Such a bonus may apply on attack rolls, saving throws, skill checks, caster level checks, or any other checks to which a bonus relating to level or skill ranks would normally apply. Circumstance bonuses stack with all other bonuses, including other circumstance bonuses, unless they arise from essentially the same source.Ī competence bonus (or penalty) affects a character's performance of a particular task, as in the case of the bardic ability to inspire competence. An armor bonus doesn't apply against touch attacks, except for armor bonuses granted by force effects (such as the mage armor spell) which apply against incorporeal touch attacks, such as that of a shadow.Ī circumstance bonus (or penalty) arises from specific conditional factors impacting the success of the task at hand. Armor bonuses stack with all other bonuses to Armor Class (even with natural armor bonuses) except other armor bonuses. Ability modifiers apply to die rolls for character actions involving the corresponding abilities.Īn alchemical bonus is granted by the use of a nonmagical, alchemical substance such as antitoxin.Īn armor bonus applies to Armor Class and is granted by armor or by a spell or magical effect that mimics armor. The bonus or penalty associated with a particular ability score. Dodge bonuses and circumstance bonuses however, do stack with one another unless otherwise specified. If the modifiers to a particular roll do not stack, only the best bonus and worst penalty applies. In most cases, modifiers to a given check or roll stack (combine for a cumulative effect) if they come from different sources and have different types (or no type at all), but do not stack if they have the same type or come from the same source (such as the same spell cast twice in succession). A positive modifier is a bonus, and a negative modifier is a penalty. Two 0s represent 100.Ī modifier is any bonus or penalty applying to a die roll. One (designated before you roll) is the tens digit. You generate a number between 1 and 100 by rolling two different ten-sided dice. Percentile dice work a little differently. Any number after that indicates a quantity that is added or subtracted from the result. The number immediately after the “d” tells you the type of die to use. The first number tells you how many dice to roll (adding the results together). If the result is lower than the target number, you fail.ĭice rolls are described with expressions such as “3d4+3,” which means “roll three four-sided dice and add 3” (resulting in a number between 6 and 15). If the result equals or exceeds the target number, your character succeeds. To determine if your character succeeds at a task you do this:

Whenever you attempt an action that has some chance of failure, you roll a twenty-sided die (d20).

Does shadow blade add modifier