Pactyas the Huntsman has to be defeated in the last mission of the first chapter of Assassin’s Creed Odyssey: Legacy of the First Blade.
Before fighting the main opponent you must kill his companions.
Pactyas the Huntsman can disappear and throw smoke grenades. This way, it is quite easy to lose sight of your enemy. The first thing you should do when you start fighting is to kill his wolf.
It would be best if you fight this enemy with a melee weapon. Using such weapon will deprive him of invisibility.
During the fight, after the enemy loses half of his life, he will flee. Next part of the combat will take place in a cave.
Inside the cave you will take part in the final duel with your opponent. Focus on him so you don’t lose sight of him. He no longer has a large number of health points. A few strong blows should weaken him sufficiently.
During the fight the opponent will send his wolves to attack you, these should die from 2 blows with a good weapon – so they are not a big threat to you.