“If you summon the cat familiar and return to Fort Joy to speak to High Judge Orivand, the cat will express gratitude for reuniting it with its previous owner and upgrade the Swap Places skill, allowing it to swap places with any member of your party. “
From the wiki: http://divinityoriginalsin2.wiki.fextralife.com/Summon+Cat+Familiar
I already have the skill but the upgrade really seemed worth getting, especially to recall my Sebille assassin when she gets low on health, but I didn’t get any dialogue from the cat and the skill was the same after the fight.
