Zurzoth, Chaos Rider is a 3-mana spice to add variety to your games
The Japanese is tempting, but I think I would rather wait till the week that all the products arrive, and then buy a giant brick of things like Cyclonic Rift and Heroic Intervention in ENG and JPN foil
Korvold works best in sacrifice decks as you may expect, as sacrificing gives Korvold +1/+1 counters and draws you cards, keeping your hand fresh by simply playing your deck how you want to play it
We talked about the best group hug cards earlier this week because sometimes its nice to just be nice
The Treasure Planet card opens up a whole wealth of opportunities for players, allowing them to take advantage of the cheaper cost of Shift cards - as well as their impressive abilities - without needing to actually have the less powerful cards needed in their deck
Combining this with something like Birgi, God of Storytelling can keep your mana topped up to keep the party going