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
Thats right, you get an immediate effect and card advantage
This is a more straightforward reference to Duel Masters, effectively switching your life total for the shields mechanic from that TCG
Of these, one of the most popular (and among the top tier Lorcana decks in the game since the beginning) is the Ruby/Amethyst Bounce Control deck
Red and white decks have the most support for equipment, and also some general artifact support
Holofoil cards, also known as "foil," "holos," or "shiny," are made with an added layer to the card itself that presents a shimmering effect that stands out more and can look almost metallic or glittery