Boss damage or ignore PDR nebulite?

Oops, forgot that, currently 209% according to my stat window, I'm hoping to cube my Fafnir weapons to the same boss as my current weapons (30% * 2 on both), but the breakdown is:

40% Hero's Gloves
60% Dagger
80% Katara (60% + 20% nebulite)
11% Character cards (5% SS + 3% S + 3% S)
15% Slayer Link skill

...I'm not sure where the other 3% is coming from. O_o
But around that area at least.

Did you have a set effect?

Hadriel