Other than their rarity, art, and collectibility, these cards don't differ at all from their original counterparts in an actual play setting
Thats net positive on an effect thats almost always card neutral
2x Flounder, Voice of Reason 2x Goons, Maleficent's Underlings 2x Magic Golden Flower Cost 2 Cards 3x Aurora, Regal Princess 3x Coconut Basket 2x Frying Pan 2x Gramma Tala 2x One Jump Ahead 2x Prince Eric 2x Ransack Cost 3 Cards 2x Hercules, True Hero 2x Jasmine, Disguised 2x Kristoff, Official Ice Master 3x Mickey Mouse, Detective 2x Smash Cost 4 Cards 3x Aurora, Briar Rose 3x Maleficent, Sinister Visitor Cost 5 Cards 1x Aurora, Dreaming Guardian 2x Beast, Hardheaded 1x Grab Your Sword 1x Maleficent, Uninvited 2x Simba, Rightful Heir Cost 6 Cards 2x Mufasa, King of the Pride Lands 1x Scar, Mastermind Cost 7 Cards 1x Simba, Returned King Cost 8 Cards 1x Maui, Demigod What Do These Cards Do
While each color had a strong identity with the sixth set, aside from the standout that is Genie, Wish Fulfilled, and Pluto, Guard Dog, you probably won't see much from set six making its way to future sets
Amber and Sapphires strength lies in playing characters quickly - helped by ramping your ink - and having them support each other to form an impregnable defence while you run away with the victory before your opponents can slow you down
Porting over the counters on it to potentially multiple creatures when it dies is great, too, especially if youre playing with legendary typal