You can reduce Elsas Ink cost to 6 by using Shift, which is sort of like evolving Pokemon, in that youll need to put this Elsa on top of a different Elsa card when played
That said, which Lorcana starter deck is best for you may depend on how you like to play and how familiar you are with other trading card games, such as Magic: The Gathering
Mind Stone is the weakest of these, it's hardly good enough in monocolor decks these days and just plain awful in a 3C deck that needs mana-fixing
Kuja is a mechanically engineered wizard, artificially created to serve Garland
This two-cost item lets you gain one lore anytime an opponents character, item, or location is bounced back to their hand
Since I have nothing further to do, I pass the turn to you