‘Do not think. Do not hesitate. Simply act.’: A Hedonite host strides into battle heedless of anything but their desire to transcend the limits of mortal sensation and earn the favour of the Dark Prince in the process. At the start of the combat phase, you can pick 1 friendly unit in this battalion that made a chargemove in that turn. The strike-first effect applies to that unit until the end of that phase.
When you attempt a charge with a unit, make a charge roll for the unit by rolling 2D6. You can then make a charge move with each model in that unit by moving the model a distance in inches that is equal to or less than the charge roll. The first model you move in a unit attempting a charge must finish the move within 1/2" of an enemy unit. If this is impossible, no models in the unit can make a charge move.
You do not have to pick a target for a charge attempt before making the charge roll.