Add rotation schedule for Alchemy

[nickserv]

According to Revitalizing Standard, the following changes are being made:

1. Standard cards will be legal for an additional year, for a total of 3 years
2. The standard rotation for 2023 is cancelled
3. Alchemy cards will still be legal for only 2 years

The most important change to make is reflecting that the oldest sets currently in standard will be legal for another year.

Additionally, it may be helpful to have a separate section with the schedule for Alchemy (which should look identical to the Standard schedule currently).

[nickserv]

It seems like this is done for standard, though you can reopen if you want to shift this issue towards 3 (supporting Alchemy with the old Standard schedule).

[glacials]

I don't play Arena so I don't have much familiarity with Alchemy. I would welcome feedback from any Alchemy players about if you have or have had similar problems with understanding Alchemy as those that originally brought you to What's in Standard?.

[nickserv]

I don't play Alchemy as regularly, but I might know enough to help. Basically Alchemy used to have the same rotation schedule as Standard, but now Alchemy is on a 2 year schedule, the same as Standard before these announcements.

I was hoping we could include information for Alchemy on the same page, as the new layout has more horizontal space, and Alchemy's card list is going to be a year shorter than Standard's anyway. I'm curious how you feel would be best to display them. I was thinking of either a second column with a duplicated list of sets in Alchemy, or splitting the existing list such that there are two sets of timeline labels for Standard and Alchemy.

Alchemy also has a different ban list, though we could put it below the Standard ban list if there isn't enough space on the side.

Sidenote: Amazonian also has a video about the schedule changes featuring What's in Standard, if you'd like to use it for reference or marketing: https://www.youtube.com/watch?v=PbIzNSKNwS4

[nickserv]

WotC recently wrote Renewal for MTG Arena's 2023 Standard Rotation, which goes into detail about how and when the changes will arrive in Arena. There's even a helpful graphic comparing the sets in standard and alchemy:

Hopefully that helps, otherwise feel free to ask me questions.