[Confused.. Nankai Namba rapid train]

Hi, 

Good morning.

I m staying near namba station. Upon arrival in Kansai Aiport, 

1. Can I buy amazing Osaka card and use it to access Nankai Namba train to namba station?

2. Can I prebook  the ticket?

 

what do you suggest? 

I am a bit confused as so many different cards..

 

thank you