Whenever Ursula, Deceiver of All is used to sing a song - Lorcanas action cards that can be played for free by exerting a character equal to or greater than the songs ink cost - the song can be played again from the players discard pile for free, then returned to the bottom of their deck
Prince Eric, Expert Helmsman is nice and mobile as well, acting as a quester that your opponent will hesitate to get rid of if youre in a position of control, or as a more aggressive banisher when you need to deal with your opponent
The early meta is focused on using Sapphire to control and generate lots of cards quickly with Pawpsickle and Hiram Flaversham, Toymaker, but we may see more Sisu sooner rather than later
Not to mention she'll be pulling in lore while providing this solution
[1] Common cards have relatively simple mechanics and abilities, since they serve as the basic building blocks for any Lorcana deck