Double-faced cards were in the set from the beginning, as they're the most effective way of showing how heroes and villains have big story-related changes, and Sephiroth becoming the one-winged angel was necessary
A water bottle and energy bar or dry-snack (it's a good idea to have something if you're hungry and a round goes long)
As TCGPlayer points out, you can grow her attack power with something like Titanic Growth and then use Fabled Passage to double it again
Locke, Treasure Hunter Locke, Treasure Hunters evasion makes it a considerable threat in the command zone, and I love a cheap theft card
Diamond City surge foil $5 Being in the Fallout set, youre pretty safe from reprints
Second, these Illusions, with the exception of Giant Cobra, are outclassed by other powerful Amethyst/Steel cards