Yes, they are mechanically identical to the non-serialized version and fully tournament legal
You wont always get to play Shift characters for this reduced cost, as youll need to draw and play those base characters first, but its still worth considering whether or not to put Shift characters (or their base counterparts) in your deck
The anthropomorphic cast of characters pop up everywhere, and heres another example, with the vulpine Robin Hood making an appearance on the list of the most valuable Shimmering Skies cards
Even More Goofy Goodness Coming Soon The party is just getting started with Powerline and Max
Cards from both sets can be used to create decks, following the normal deck creation rules of a minimum of 60 cards, only cards from up to 2 Ink types can be used, and a maximum of 4 of any one card
Elsa - Spirit of Winter also has a nice 3 points of Lore awarded for questing, and has a high Willpower stat of 6, so she can absorb a lot of incoming challenges