There is a Legacy version
here.
Acquired Tolerance [reaction] Feat 8Archetype Fortune Source Player Core 2 pg. 210Archetype PoisonerPrerequisites Poisoner DedicationTrigger You fail a save against a poison.
A small amount of poisontaken at nonlethal doses, can help the body build up resistance against a more deadly dosage. Reroll the triggering check and use the second result. Once you use Acquired Tolerance, you can continue to use it against the same type of poison that day, but you can't use it against a different type of poison until after you make your next daily preparations. For instance, if you used the reaction on a save against
giant scorpion venom, you could use it again against giant scorpion venom even if it came from a different source, but you couldn't use it against
wyvern poison.
Traits
Archetype: This feat belongs to an archetype.
Fortune: A fortune effect beneficially alters how you roll your dice. You can never have more than one fortune effect alter a single roll. If multiple fortune effects would apply, you have to pick which to use. If a fortune effect and a misfortune effect would apply to the same roll, the two cancel each other out, and you roll normally.