Help with melee trap DA

Hi, I’ve been playing the last few hours with these daggers that makes DA melee skills and Im having a lot of fun with it…I do want to know whats the best element for it and for better damage for end game, I was thinking about trying poison, but I like the arc and lightning effect from lightning damage also there’s the critical vulerability and I dont know how does poison perform in harder difficulty…any suggestions? is any of those good? or maybe the other ones?

also, what about defenses? whats the best way for survability? do I rely on Glancing blow? or are there other methods?

thanks for helping

BTW: lately Im noticing huge performance issues, probably due to the quantity of traps and the lightning effect?