As I explained in my article "Metamorphosis 2.0," it wasn't until we took core sets away that we realized how much we'd relied on them for certain things: fitting in reprints that were world-specific, making cards to mechanically support themes in Standard or set up things that will eventually be relevant, helping players avoid fatigue as the core set is opt in, and most importantly, helping ramp new players into the game
Gold Pikachu Nothing screams expensive like a flash of gold
So, get a ton of ninjas onto the battlefield with a card like Mist-Syndicate Naga, and even pair this card with damage doublers like Bloodletter of Aclazotz to win games outright
For a full rundown of the contents in each booster type from Kamigawa: Neon Dynasty , you'll want to check out the Kamigawa: Neon Dynasty Product Overview
He did a video a while ago on this
Solemn Simulacrum 3 OK filler but really on the pricey end