>>57968933 (OP)Don't shy away from changing up your team often. The days of sticking to a team of 6 is over because of Exp Share.
Keep an eye open for shinies.
Don't skip any dialogue, the story is pretty good this time around.
What
>>57969964 said, especially regarding doing Arven's stuff first.
Have fun.
>>57968943That's not true, catchrates are different for every Pokémon. It's just that early mons have really high catch rates.
>>57969949The DLC is pretty good.
It has two parts. The first part can be played right after you start the Treasure Hunt at school, although it also has a high level version if you start it after beating the game. But I think it's intended to be beaten before that.
The second part focuses on double battles, it can get pretty tricky for beginners.