Converse with fellow players
Saria - Newearl -
Ship 3 - Block 42 -
Alliance - Exodia
I know when you use a PP Up drink it will sometimes give you knockback resistance. I'm not sure about any other ways to get it though.
I can't believe I blew through $50 worth of AC on the scratch off, but luckily for me I got everything I wanted. This is positively the best AC Scratch so far though.