Its a perfect blend of control and value for Dimir mages looking to get the most out of every spellagain and again
In the past you used cards like Belle - Strange but Special but now you have a faster, harder to deal with late game threat that abuses the nine willpower
It's worth noting that while it may be appealing, I don't think Emet-Selch has a place in a Bounce deck these days because Bounce decks are based on permanents and have a hard time getting cards into the graveyard quickly, but it does provide an excellent way to get back into the game after a Pest Control or other sweeper that deals with your enchantments
Ravensburger has announced the next chapter for the Disney Lorcana trading card game, including a new format, set rotation, and more
So many of the cards in the deck put +1/+1 counters on your creatures for minimal effort, and with certain other cards, those counters can stick around even if the creatures with them get removed