With this loadout this fight isn't so bad. The sheer amount of DR, defense, and regeneration that you get will make this fight actually quite easy. The Exoblade is a very powerful weapon and if you want to defeat Yharon quickly this is definitely the weapon you should go with.
Terraria outro music: (https://www.youtube.com/watch?v=IgwBiWHdsXU)
All music in this video is copyright of their respectful owners & no copyright infringement is intended!