It's one of several animal versions of the famous mage, each of which triggers an ability any time it enters or leaves play
To me, this is easily the most uniform theming Ive seen from the game so far to the point where I felt as though I could place all the cards on a large surface to make a single image
The card can also be turned into ink if he appears later in a game, without much of a downside to including the card in your Steel deck
If your deck consists solely of Amber Ink, you cannot include Pascal, Garden Chameleon, as it also requires Amethyst Ink
Cards like Lilo, Making a Wish and Stitch, New Dog were just two of the many cheap threats packed into the amber/x aggro shell, with the purpose of getting characters into play as fast as possible, and then using some number of Lanterns or shifting using Stitch, New Dog to get Stitch, Rock Star into play ahead of curve
The first four sets will rotate out of the Core Constructed format, but will still be available to play in a new format, called Infinity Constructed