Regaining Prerequisites and Retraining

[GhostwheelX]

If I gain a feat that is a prerequisite for other feats from a class, can I use the retraining rules to trade the original feat for a different one?

For example, let's say I'm a level 5 character who has taken Weapon Finesse and Piranha Srike. Then I take a level of Unchained Rogue (or two levels of regular Rogue and choose the Finesse Rogue talent), could I use the retraining rules to switch my original Weapon Finesse feat for a different feat for which I qualify?

[Wonderstell]

Yes.

You qualify for Piranha Strike during/after the retraining, so that should be no problem at all.

Unless there is some complicated reading of the rules which would prevent you from actually "gaining" Weapon Finesse as you already have it, forcing you to retrain both your feats.

[James Risner]

No

The rules say you can't retrain a prerequisite not that you must maintain the prerequisite.

You can retrain piranha strike to something and the weapon finesse to piranha.

[GhostwheelX]

James Risner wrote:

The rules say you can't retrain a prerequisite not that you must maintain the prerequisite.

If that's the case, would it actually be a prerequisite when we fulfill the prerequisite (changing the "pointer" of the more advanced feat) through the same feat, gained in a different way?

[James Risner]

Example:

1st Weapon Finesse
3rd Piranha Strike
Class bonus feat Weapon Finesse

Retrain 3rd Piranha Strike to something you need with a different pre-req like Accomplished Sneak Attack or Greater Dirty Trick.

Then retrain your 1st level Weapon Finesse to Piranha Strike.

Now you look like:
1st Piranha Strike
3rd Accomplished Sneak Attacker
Class bonus feat Weapon Finesse

10 days and 3*10*2*5 gp (300 gp)