11 bard, 7 wiz, 2 warlock w/ extend feat, int based, twf daggers, tiefling scoundrel is a good choice
Best buffs in game for raiding are:
LGS Dust (wiz death auras) -35 PRR
LGS Ooze (wiz death auras) -10 PRR/MRR
LGS Vacuum (main hand sentient weapon w/Fetters) =
https://ddowiki.com/page/Item:Pain,_the_Half_of_Whole (can't be on death auras) 20% vulnerability
LGS Ash (offhand, can't be on death auras) -21 MRR
Taint the Aura (Consume add-on) -10 PRR/MRR
Crusade (Divine Crusader) +9% physical damage
Bring Darkness (Shadow dancer) -9 PRR/MRR
Shadow Loss (Shadow dancer) (need int to hit/dmg/kta) -5 PRR/MRR
Shattered (Sentience on Pain) -10 PRR/MRR
Bard Misc 10% Damage
Total: -79 PRR, -65 MRR, +9% physical damage, +20% vulnerability, 10% damage = 2.2x magical, 2.6x physical dps
This means TWF, so have to use VKF to get crit range, which means daggers.
So points in 23 VKF (crit/offhand),38 warchanter (buffs), 7 SE (taint), 12 harper int to hit/dmg/kta
ED: divine crusader (crusade), SD bring darkness/shadow loss