Xenoblade Chronicles X

- Read the manual. Seriously it has a lot of info the game never explains.

- For Basic missions never pick up a gathering missions because you can obtain the items before even taking up the mission. Every once in a while just check the gathering missions listed and accept anything that you already have the materials for.

- For any Normal mission that requires you to collect something just look up the area to get it because you're never given a hint on where to find certain collectables.

- Once you master the last class in a line you have access to that classes weapons for all other classes so there's no reason not to switch classes and try to master them all.

- Arts you unlock are tied to specific weapons but Skills are usable for all classes.

- Affinity missions will also unlock Arts for you to use so it's worth doing them when they appear (Not to mention they're usually pretty fun compared to Normal or Basic missions)