Got a notification during battle that said "(Name of Pokemon here) is skilled enough and got stronger"...

[Dokuganryu_Silvio]

Is there any meaning behind this? Did my Charizard just gain an IV point or something? I'm very confused. All of my main team is Max level (beat Saphira) so I dunno. All I know for sure is that it reset my Sp.Atk EV's to 0 (or 3 in this case since I was in battle with a Mon that gave Sp.Atk EVs)

[Gentleman Jaggi]

It's the EV Overflow mod from the SWM modpack

With that active whenever a Pokemon gains EV in a maxed stat that stat's IV is increased by one and the EV are reset.

[Dokuganryu_Silvio]

That makes a lot more sense. Thank you.