Its at least a little more exciting than Skittering Cicada, which is mainly just an additional copy of Urzas Battlethopter
You can also bounce our stuff if they are targeted for removal, to reuse an ETB or after chump-blocking too
The main thing that is going to hinder her playability is that shes uninkable
It wasnt the only problem, though
Yet, the expansion wants to offer a new setting for the game that hadn't been explored outside of lore, with it being the far edges of the Blind Eternities in the Sothera system
While a deck like Eldrazi Tron, for example, still uses Leyline of the Void to knock out graveyard decks in the sideboarded games, having access to something that Karn can find in Game 1 gives you the ability to deal with the graveyard in any stage of the match