Final Fantasy d6 (Complete System)

[Surrealistik]

Black Fang is a supplement to Darkside; you need to use Darkside first, including paying its costs in order to use Black Fang at all. Deathless Hatred could be limited to 1 / Session.

Black Fang, Clad in Darkness, and in general the more powerful Job abilities that are too strong early, but are more acceptable later on are both probably going to have minimum level requirements to take.

Agree that Black Sky should be revised so that you can use it once per combat as an Instant action, or in place of moving at least, or use it at Instant speed at the cost of HP.

In terms of prerequisites, the ability chains are only ever 1 prerequisite deep, so I don't think it's too problematic, even with only 9 abilities.