Fighting Ghostflame Dragon (Gravesite Plains) using Dark Moon Greatsword

Level 158 and 3 scadutree fragments. Still in the midgame part on this save file. Damage will be higher if you wear Spellblade or Rakshasa set, and use Shard of Alexander as a talisman. It'll be better too if you use Magic-Shrouding Cracked Tear or Opaline Hardtear instead of Twiggy Cracked Tear.
I admit that my build isn't that optimized but this just proves how amazing this weapon is.