Frequency of Appearance is how likely an ally or foe appears on their own in an adventure.
"Frequency of appearance multiplies the point cost for an Associated NPC after determining power level and group size (as applicable), but before you apply any special modifiers:"
- Constantly (no roll required): x4.
- Almost all the time (≤ 15): x3.
- Quite often (≤ 12): x2.
- Fairly often (≤ 9): x1.
- Quite rarely (≤ 6): x1/2 (round up).
(B36)