The Amber and Amethyst deck is for players who like having a lot of characters out at one time, while the Ruby and Emerald deck comes with a dash of control and counter abilities, meant to frustrate opponents as much as possible
It's possible to play and enjoy Disney Lorcana without ever paying any mind to card rarity, but understanding it can be really helpful for players trying to get specific cards for their collection or for a specific deck
If this spell was cast from a graveyard, exile it, then put it onto the battlefield transformed under its owner's control with a finality counter on it
Amethyst cards focus on magical glimmers and effects while the Steel cards have a more combative approach
Whenever you cast a non-creature spell, you may pay B
If this is the case, certain dual-ink cards could be used to fill in some glaring holes in various decks