Any Standard deck that doesn't use the rebalanced cards is ready to go for Alchemy, and any deck using the rebalanced cards will just need to swap in the new, rebalanced versions that players have been granted
This led me down a rabbit hole of discovering all sorts of cards that were banned
It's not immensely, but it's advantageous to hide cards like this in your manabase without sacrificing the consistency of your land drops
Breeches, Brazen Plunderer Breeches, Brazen Plunderer might be the most fun way to play cards, off the top of your opponent's library
Throne of Geth is also spectacular, since it doubles as a sac outlet and the triggered modular ability will resolve before the proliferate does
Which one are you most excited for, and are there any standout cards that youre chomping at the bit to play