Look at the "Passives" tab in your menu. Greyed-out passives often give a hint about their requirement (e.g., "Defeated by [Enemy Type] 5 times").
Master Guide: Karryn’s Prison Passives (Verified Mechanics) karryns prison passives guide verified
If you are looking to min-max Karryn for a specific run, follow these steps: Look at the "Passives" tab in your menu
Some Edicts accelerate passive gain for specific traits. If you want to be a tank, enact armor-reinforcement edicts that encourage physical engagement. karryns prison passives guide verified
Earned by consistently using your primary weapon. Increases crit rate and accuracy.