Sometimes, Japanese variants are worth more, others just look better if the text is arranged differently, and some feature exclusive artwork
(Remind me when Worldwake is public and I'll tell you about it.) One of things that is very subtle about planeswalkers is how we try to craft their abilities to match the kind of wizard each of them is
Elsa, of course, takes center stage with the highest number of cards crafted after her
This is because, for one mana, Karn can be used to convert one of your noncreature artifacts into a creature until the end of the turn, with that artifact's power and toughness being equal to its mana value
Giving your tokens extra utility is always a great quality, and it's important to note that Baylens abilities arent restricted to creature tokens: Food tokens, Treasure tokens, etc