Which things would I have the alternative to exchange from xingwang's blog

Which things would I have the alternative to exchange, and Rocket League Credits  which not? 

You can exchange uncovered Blueprints, things worked from Blueprints, free Dropd, credits, Pro and Free level Rocket Pass things, and occasion things. You can't exchange shrouded Blueprints, things purchased from the in-game shop, extra presents, Esports Shop things, DLC things, common things, Premium level Rocket Pass things, and real season rewards. Attributes besides can't be exchanged continually. 

What packs are there in Rocket www.lolga.com vLeague?