Along with miraidon, these are the nerfs/buffs that are coming in the next update

To summarize the patch notes

BUFFS:

Delphox, Zacian, Blissey, Pikachu, Leafeon, Meowscarada, and Trevenant

NERFS:

Dragapult, and Crustle.

Mega Mewtwo Y & X:

The more points you have in your inventory, the longer their mega form lasts.

Charzard:

Unknown stats

This is what we know about the patch so far.

Credit for this information goes to:

Eevee on Twitter 👇

Patch Source

https://x.com/ElChicoEevee?t=CQoYOMi3pvWfqAMTmMAlOg&s=09