Welcome to Commorragh, Archon.
I must agree with CptMetal. Dark Eldar are difficult to play and you must use your strongest tactics and strategies to win the day, but it is very satisifying to crush your enemies with an "underpowered" army. They never suspect the power of the True Kin to overtake them.
Leave them stunned. Leave them asking how, as your blades sink deeper into flesh, sucking out that sweet sweet agony with every scream.
Cheers.
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Kabal of the Tormented Scale