[1.2.323] (2) Moar Skill Balancing

The WZ files are inconclusive in regards to dual charging. Nothing in the WZ files state whether it's possible or impossible, same as always.

Lightning Charge's description still states that it can be used in conjunction with another charge.
"다른 속성의 차지 스킬과 중복하여 사용할 수 있다."

Descriptions can obviously be wrong though, but it wouldn't make sense otherwise as they'd be significantly weaker than Heroes and Dark Knights, in my opinion. It would be very similar to pre-Dual Charge again where Paladins don't even outDPS Heroes when they have Holy advantage if I remember correctly.