This tutorial will explain how you can beat The Contessa without taking any damage in Sly 2 Band of Thieves (2024) on PS5 and PS4.
Use the following video as a reference:
For the first part of the fight, you should circle around Contessa to avoid her charge attack. You can then attack her afterwards.
Try to stay close so that she doesn’t summon any spider minions.
For the second phase, she will add a hypnosis attack. If you get hypnotize, try to stay close while circling around her.