You already know Pokémon Legends: Z-A is a fun game (and if you don’t, read Brian Shea’s review here), and I’m not here to repeat that sentiment. However, I do want to take this article to highlight some of the things I recommend hopping back into the game to complete if you haven’t touched it in a minute.
If you connect to the internet to receive Mystery Gifts, you can claim a Diancite Stone, a Mewtwonite X stone, and a Mewtwonite Y stone. Once you’ve claimed those two Mystery Gifts (you receive the Mewtwo stones at the same time), two new side missions will be added to Lumiose: Shine Bright Like A Gemstone and Project M. Complete the former to encounter Diancie, and complete the latter to encounter Mewtwo, allowing you to add both of these legendary Pokémon to your party. And with the stones you received from Mystery Gift, you can Mega Evolve both of them!
Elsewhere in the game, if you haven’t hopped into the online ranked mode battling yet, you should! You don’t even have to be good – just play 5 to 10 rounds until you reach Rank S, and by that point, you will have received the Greninjite, Delphoxite, and Chesnaughtite stones as rewards for ranking up. These allow you to Mega Evolve Greninja, Delphox, and Chesnaught, respectively. There’s no word on whether these rank rewards will remain after the current Season 3 of ranked battling, so I recommend hopping in asap to win these stones.