Sure
http://goo.gl/Ro2oVe
Something like that, you can switch points from Improved Call of Lightning and feat Lightning Cast, or put more points in Set's Entrapment, or even put 1 point in Lightning Arc, or remove all points from Idol feats and invest into Wrath of the Serpent Ring.
Find what suits you best and go for that, i change my Fangs spec quite often.
Btw Lurvi i didnt say it does not work on dots, i said it does not work well
Meaning that it doesnt work on half the dots ingame.