Pokemon Trading Card Game Live is coming soon as a replacement for the Pokemon TCG Online app
I think you can make a case for it over the Sudden Spoiling in some Dimir brews and not in others where this was a blowout as a combat trick or with red mass damage effects like Mizzium Mortars that will shoot them all for 4 damage, you'd prefer the Sudden Spoiling to remove things like indestructible
Plus, the design choice is odd
As to what characters we might se in the set, Rasmussen hinted that if you can name a character, its probably in the set, even going so far as confirming Samwise Gamgees loyal horse Bill the Pony will be putting in an appearance
If it's possible, disconnect all other connected devices on your local network so that you're the only one consuming the bandwidth
Tip: You can easily distinguish tradable and non-tradable items by checking if they have a lock icon