https://tappedout.net/mtg-decks/budget-beginner-teaching-decks-1-green/
https://tappedout.net/mtg-decks/budget-beginner-teaching-decks-2-red/
^^ the two decks I used, I played green and the ai was red. Still getting the hang of this game but with over like 50k cards in the library and endless combos it's so deep. The AI is quite smart on Forge too. I've never played MTG in my life so this is all new to me.
Standard rotates every three years now, which is kind of nice. It used to be too short IMO.
It can be double edged tho, if the sets are whack you're kinda stuck with it
I dont follow competitive Magic too much these days, but I remember the community was seething about Throne of Eldraine at the time
They introduced a new format (pioneer) that seems to be about the same rotation that standard used to be (~4 most recent sets). I very recently just got back in so I'm still learning about a bunch of the stuff I missed. I think those format changes just happened.