You're missing the point. During contest you're using very low level fresh Heroes.
With bone dragon being in every single line it seems you can't keep anything charged.
And now that karaoke is out, it doesn't matter if you're charged or not, you can't use it. You can't fire your white, because karaoke turns it off.
And yes I have gone up against a karaoke that instantly fires, just like Master Thief instantly fires in expeditions.
Where these characters get their charge from is unknown, but they instantly activate their white.
And as I stated previously in the thread, all three chapter 1 lines, had bone... nothing was "charged", going into chapter 2.
Expeditions implementation in the past, even at the most ludicrous level, never had you starting chapter 1, Wave 1, equal to or more than your present level.
especially during a contest.
That just tells me that "they" don't want you to win the prizes, they want you to buy them.