Lady of Slaughter is a Side Quest in Assassin’s Creed Origins. This walkthrough shows how to complete the quest.
Recommended Level: 8
Region: Lake Mareotis
Requirement: having finished Ulterior Votive
Reward: 800 XP + Legendary Outfit
Trophy: 
The Festival
Objectives:
- Find and bring Pamu to Menehet
- Speak to the High Priest about replacing Pamu
- Enter the ring to face Isfet’s fighter
- Defeat Isfet in the name of Sekhmet
This quest is another follow-up mission by your old friend Menehet, who asks you to search for a guy by the name of Pamu, who is supposed to be a fighter at an upcoming celebration. Menehet suspects him to be in a tavern, so this is the first location we should check out. Using Senu is very helpful once again to get an exact location of our target. The tavern is actually right next to the stand of the merchant from the previous mission.
Once we arrive, we will see Pamu laying on the ground due to him being drunk. You can’t even talk to him but just pick him up and carry him back into the temple. Menehet is not happy to see him in a condition like this but is very thankful that Bayek offers himself to replace Pamu for the upcoming fight. Our next stop is the High Priest who has to allow us to pitch in for Pamu. Luckily, the priest does not need any convincing at all.
Your best strategy in the fight will be to cover yourself with the shield 
at all times, dodge 
when you are being attacked and quickly counter-attack with three hits 
. When your power meter is filled, press 
+ to deal more damage.
After defeating your opponent, a cutscene will play and you will be awarded 800 XP, a legendary outfit and the The Festival-trophy.
Hi.
Thanks a lot for the help! Had been stuck for hours in this fight and was able to beat him thanks to your advice!