I want to pick up Keiboom because it looks like a good card and also because he will be another Nats player on my team that will help me with the Nats affinity. Is his price likely to drop much in the near future? Should I hold off or buy now?
Carter Keiboom's price
It'll drop eventually, but we don't know the exact time frame.
At some point this year, Headliner Set 22 packs will be handed out like candy. Either via hidden in a Conquest Map, as a Inning Reward, as a reward from some unnamed Potential Nationals Player Program, or something along those lines.
Whenever that happens, Kieboom's price will go kaboom.