The issue I have with giving the Celt a custom affliction is that it removes all other afflictions from her potential pool, including virtues. As of now, the gamble is a part of the stakes and balance for the character. However, if over time it proves that the Celt is too strong at high stress levels, i may make a custom affliction to address it. Thank you for your feedback.

Now eye of balor free action and marking from this perk have no sense.

Marking self is a balance mechanic, increasing the likelihood that she is targeted for using her buff. The free action is increase the versatility of the ability.

now mark delete after FREE action (make 2 turns for mark)

Oh I see, thank you for the information Jason Voohis