There are plenty that could be good but dont make the list because their color identity is too narrow to play in the limited cascade card space, like Mizzix, Replica Rider, Kellan, the Kid, Prosper, Tome-Bound, Satoru, the Infiltrator, and Etali, Primal Conqueror / Etali, Primal Sickness
By round two, you can have her sing a cost three song thanks to her Singer ability
When I am eventually brave enough to fight against real people, Im still scared Ill be laughed at for being an imposter, so kudos to Wizards for drastically limiting the options for communicating with your opponent
For example, PriceCharting values Full Art Serena from Incandescent Arcana at $250, while TCGPlayer values the same card from Silver Tempest at $37.55
Some players may tell you that gaining life only lets you avoid losing, which is no way to win