The game was produced in close collaboration with Jordan.

All Forsaken typically roll 4 dice for One Power (Ishamael and Lanfear get 5, though). Elaida gets 3. Egwene the Accepted gets 2. Elayne the Accepted gets 2. Liandrin gets 2. Moiraine gets 2. Nynaeve gets 2 (Moghedien gets 4 - I checked). Rand starts with 2 but "Rand the King" gets a whopping 5. Siuan as Amyrlin gets 3. Verin gets 2. Leane gets 2. Alanna gets 2.

While Rand, Elayne, Egwene and Nynaeve might have fluctuating values, the others give at least an approximation of relative strength. If Ishamael gets 5 dice and Siuan and Elaida get 3, but Moiraine and most other Aes Sedai only get 2, it gives you a way of quantifying One Power ability. The issue is whether we consider that each additional die adds an arithmetic rise in ability or a geometric one. Theoretically, it should only be arithmetic, but a good argument can be made that one would have to take the statistical odds of getting the number of successes needed to "succeed" at tasks in the game with each number of dice and turn that into a power scale.