We have new keywords and ideas, such as new keyword Resist, which allows you to reduce incoming damage - something that I can see being equally amazing and annoying, depending on which side of the board youre sitting
(Im also secretly hoping for a princess film about a knight now, but one step at a time.) If you already loved Lorcana, Rise of the Floodborn will only build upon that
Merlin could singlehandedly bolster any deck running Sapphire, and will most certainly replace the other Floodborn character of the same cost, Gaston Intellectual Powerhouse
However, things change quickly on the secondary card market
Its a classic control type deck that operates hit-and-run tactics earlier on, then when its set up later can be hard to stop