Depends if you’re using guns or bows. For guns, Clockwork Assault Rifle or Onyx Blaster with Crystal Bullets and Adamantite/Titanium Armor. For Bows, Daedalus Stormbow, Shadow Flame Bow, or Adamantite/Titanium Repeater with holy arrows and Adamantite/Titanium Armor as well (Remember to go with Adamantite Mask/Titanium Helmet)
Use an ammo box too and if possible, try to have a way to inflict ichor/cursed flames on an enemy.