The strength of the Evasion Down effect varies with a set minimum requirement on the caster's Enfeebling Magic skill to reach a base potency, further modulated by a difference between caster and target MND, using the following derived formula:
Evasion Down value = Base Value + int((Caster MND - Target MND) x 0.2)
The Enfeebling Magic skill required to reach the maximum Base Value of 25 is 125. The base value goes down the lower the caster's skill.
Potency caps at ΔMND 50, for a total value of 35 Evasion Down.
The effects of Saboteur and equipment that enhances Saboteur apply their bonuses to the Base Value of the formula.
Equipment that has "Enfeebling magic effect+" bonuses apply their bonuses on top of the ΔMND value.