Purely hypothetical (no ****), what would it take for the Caps to get him?
Assuming he'd play right wing, he would be as good a compliment for Ovechkin or Semin down the road as one can imagine. Pretty fast, has good vision, can be a playmaker and a scorer, and most importantly, has excellent puck possession skills (top 10 in the NHL imo), which seems to be an absolute necessity for Ovechkin's or Semin's lines to work well. I mean, Kozlov is an average point getter and his only real intangibles are puck possession and boardwork, and he makes for the best linemate to Ovechkin out of anyone on the Caps. Frolov plays a similar style but has a much higher ceiling.
So, what would it take that wouldn't involve gutting the Caps. Fleischmann, Osala, 1st?
Kings don't need picks and prospects. Kings need good veteran players. Trading frolov for anything that doesn't make the kings a better team now (so a forward better than frolov to fill the hole that trading frolov creates) is counter productive. Hence how trading Frolov makes no sense.
It wasn't odd to see them deployed as a 5 man unit and watch them dominate the opposition. They had everything in terms of what you would want a 5 man unit to have. Skill, Speed, Physicality, leadership, chemistry and a great understanding of what each player did well and the ability to maximize that.