I retract every thing I just said. Yesterday I took on an Imperial Knight, a squad of Skitarii Vanguard and Sicarian Infiltrators. I had a serpent full of wraith guard and a spirit seer, a farseer on a jet bike with 4 jetlocks, a storm guardian squad and a defender guardian squad. Psychic Shriek killed 80% of the infantry. The DG bright lance took out a hull point on the Knight and the 5 wraith cannon shots took out another hull point on the Knight, despite, Doom Guide and Spirit Mark.
The Knight then tore me a new one. So much for those infullable D weapons. In fact, my shooting accounted for 3 vanguard and two hull points over 6 turns of play. And yes, in terms of points, the Eldar force was bigger by 250 and still lost.
I want some real power for the Dar