Loran Darkbeast

Doing my first playthrough of Bloodborne and decided to do the chalice dungeons before going to fight Orphan and ran into the wall that is Loran Darkbeast and just wanted to know what the best weapon to use would be, and for any tips and such, especially during the phase where it gets really pissed off, I just can’t seem to find any moment to attack while it’s constantly wailing on me and jumping around. I’ve seen people suggest Pungent Blood Cocktails but in my experience, he would just do the lightning AOE and then pretty much go right back to attacking me so I would have barely any time to deal damage while it’s focused on the cocktail