Combat, Evolved

Use an "Ages of ..." Potion with a combat multiplier of 20 or more.

I got this achievement semi naturally after I beat the arena on Heroic difficulty. To get this achievement you will need 1 Ages of Skill, Will or Might Potion, and these are looted along your journey off of corpses, barrels, cabinets, bookshelves, and chests. Once you beat the Arena you will begin to come across Undead and they can be used to get your combat multiplier up to 20 easily since they are extremely slow. I kept my distance and used an Ebony Bow to kill Undead and increase my combat multiplier to 20. Once your combat multiplier is at 20 or above go into your inventory and take 1 Ages of Potion and you will instantly get the achievement. I will post a video of me getting the achievement below and if you need help locating an Ages of ... Potion I will provide Wiki links that will show the locations of the Potions.

https://fable.fandom.com/wiki/Ages_of_Skill_PotionOutside
https://fable.fandom.com/wiki/Ages_of_the_Will_PotionOutside
https://fable.fandom.com/wiki/Ages_of_Might_Potion