| Specific Situation
| Modifier
|
| Attacking with weapon
| Weapon speed
|
| Breath weapon
| +1
|
| Casting a spell
| Casting time
|
| Creature size (Monsters attacking
|
|
| with natural weapons only)*
|
|
| Tiny
| 0
|
| Small
| +3
|
| Medium
| +3
|
| Large
| +6
|
| Huge
| +9
|
| Gargantuan
| +12
|
| Innate spell ability
| +3
|
| Magical Items**
|
|
| Miscellaneous Magic
| +3
|
| Potion
| +4
|
| Ring
| +3
|
| Rods
| +1
|
| Scroll
| Casting time of spell
|
| Stave
| +2
|
| Wand
| +3
|