For casual EDH, Im excited to see her as a five-color commander that can do interesting things with enchantments
The card you leave in your graveyard could be as simple as a huge haymaker like Jin-Gitaxias, Core Augur
As an MTG card, this puts it in similar company with budget reanimation spells like Miraculous Recovery, though with the artifact flexibility that allows it to be sacced for other purposes if no longer relevant for that turn
Cruella De Vil, Miserable as Usual allows you to return a character back to a player's hand , showing off that once a character is on the field, they can be bounced back to their owner, forcing them to pay more ink to bring them back or get rid of them
Some characters, like Yshtola, have such deep character development throughout portions of their game