I got destroyed very badly by a tau player with my mixed cc/shooty dark eldar so i made a new list. I also read and took mush's advice vs tau using NS and range to abuse the living crap out of those 30" guns.
Haemy / liquifier and casket of flensing
3xsplinterborn/NS venom dual cannon
2x10 kabalites /SC in DL raider
3x6 HW wyches in DL raider
6 reavers/2 caltrops
5 scourges /2 SC
3xNSravagers
Warriors stay out of raiders and wyches too if there's a chance of explosion
S8 vs all those t4 multiwound 3+ guys is almost hilarious and them cannons wreck face!