Hi.
I'm working out some rough numbers here, which could certainly be wrong.
But, consider starting with 16 str, and ending up with +2 tome, +6 item +5 levels and +1 exceptional for 30 str total.
And consider Radiance 2 rapier,
Then
+10(str) + 5(wep) + 2 (racial enhancement) + 6 (average from holy damage) + 3 (average from electrical damage) + 4 (average of greensteel rapier) = 30 damage.
+ a sneak attack of say 20 + 10d6 = approx 55 average damage.
That means each attack will do approx/roughly 85 damage per hit?
And of course, less on the off hand, due to half str bonus.
Am I way off??