[1.2.395] Demon Slayer (1)

If the lack of Hero's Will is such a big problem, you could always just mass produce Elixirs of Awareness, which is basically Hero's Will in pot form, complete with 5 minute cooldown.

3rd job skill:
Dark rest:
HP Cost: 120, Duration: 180, Defense: +100%, Status Effect Resistance: +80%, Elemental Resistance: +80%

That'll go great with the Status Effect Resistance +30% potion ^O^