Ugin, the Spirit Dragon Ugin's first 2 abilities are nothing to scoff at
That said, even though Wizards of the Coast will be revealing a lot of goodies this afternoon, some new cards are already starting to hit the scene
Fetchlands are what makes this thing good, and its in decks that can recur them from the graveyard that Avenger does the most work
These feature the acorn stamp, indicating that they're not legal in typical tournament play, though they still feature Alchemy-specific mechanics that don't really work in paper (conjure, boons, etc.)
Cathartic Parting Cathartic Parting gets by with its artifact removal, while the shuffle effect is more of an afterthought
A decent board wipe option has finally arrived with Spooky Sight, and it's giving Sapphire some fun options to play with regarding removal