One of the key features I find fascinating in the Emerald and Ruby starter deck is the ability to steal Lore away from your Lorcana opponent through cards like Steal From the Rich, Rapunzel, Letting Down Her Hair, and Aladdin, Street Rat
It's early to say whether dual-Ink cards will be great or otherwise, but from what has been shared, they don't seem strikingly powerful for their restrictions
Belle and Beast from the Archazias Island Ruby/Sapphire Single-Player Deck are Ruby and Sapphire
Amber is an ink colour that favours getting more bodies on the board and this card is no exception as its ability gives the player two lore every time they ready it, as long as they have two or more characters in play
Instead of ensuring you have a card to play each turn in your opening hand, ensure you have cards that work well together