
+15 Dragon Bone with Max PDI
VS
+15 Ocean's Bestowal with Max PDef%.
I did the test on a my training dummy with 90% strength / Demihuman / Medium.
From the results I got, it looks like +15 Dragon Bone with Max PDef% will give the highest ED damage. Hopefully I get lucky again soon lol.
Note that getting the highest damage is not always ideal, depending on your role and playstyle, you may want to compromise some damage for more survivability.
As always, hope all of you are safe and doing well. God bless!