Dark eldar ynead rules

can i field a dark eldar army with yvraine as my only hq? i dont wanna play ynarri but i like the hq

No. But you can ally her with your DE, so take a Lhamaean as your HQ and assign some of your troops as Ynarri troops.

thanks for the quick response ill just play her as a archon. its the model i really enjoy.