Run them behind a wall of bastions or TFG, then when you want them to charge leave some cracks in your wall to get LOS and charge through your models or your opponents. I once had them charge through an opponets unit of champions to get to the fellcaller behind them.
@Darisus, how do you get the Daughters to their target(s) now that Stealth is gone? I'd really like to get that unit, but (as usual) can't see how I'd employ them well.
This model can advance through other models if it has enough movement to move completely past their bases.
This model cannot be targeted by free strikes. This model ignores intervening models when declaring its charge target.
This ability is so good on them with the def 15, they can just keep charging through your opponents army till you can get to a caster. The only thing that they suck against is blast damage from AOE's.