Here is an example of a game where I played KotC, they fall very nicely into what I call Forecast spam and pair very nicely with Seers/Temporal Research. Also seen use by EricF last CAMS in use with the Peace engine (if I remember correctly he won the tournament with that deck correct?)
I have played more games with them, this is just the first one I found
An advantage with this style of play is around T4/5 you have a very small deck, allowing very rapid cycling and reflexive teching. With forecast 2 and a single seer, the turn after you played it arrives, which doesn’t give an opponent time to exploit the opening you have made (esp if the purple player is P1).