5 levels as blackguard would work quite fine. Only wasted feature would be smite good which has less use but you can smite the few good aligned groups with heavy handed blow then as opener ;). Sneak attack, rebuke undead, companion, dark blessing and spells as blackguard are all good. Also qualification is easy and supports stuff what you get as draegloth anyway.<br/><br/>However there is blackguard around, so another way to go religious champion would be taking levels as Pious Templar PrC (you get mettle, spellcasting and weapon specialization to weapon favored by Lolth). Anyways this case I count both dagger and whip as deity favored weapons for Lolth. So you can be whip using draegloth.