To find the right balance you can add back in Hercules, Hero in Training as well as the new Floodborn character, Hercules, Divine Hero
Rarer cards have special foil treatments and unique artwork
In my lore breakdown of the Commander deck, I mentioned Yuffie very briefly, since she's a secret optional character you can miss entirely
(Some abilities can also target unexerted cards.) But not using them has less of a direct benefit - you dont need to defend your life points, as in MTG or Yu-Gi-Oh!, so leaving cards upright is typically only worthwhile if theyre likely to be challenged by your opponent and you need them for a future turn
These Enchanted cards feature Lorcana cards featured in the main set but with alternate artwork that make them at once gorgeous and valuable
Amber is all about healing and support (literally, in the case of the Support keyword)