Board Game Arena

Thanks for your answer. I'd seen about nobles but I don't understand the reason for reserving such an expensive card when there's a 3 white card at 1st level, which will also be easier for other players to buy ?

Hello,
I'm new to this game, I watched this replay and didn't understand the winner's strategy.
What's the point of reserving the card he took in the first round?

https://boardgamearena.com/gamereview?table=292983461

Thx