Of the two, Legacy is more popular than Vintage in no small part because the Power 9 are ludicrously expensive
Meanwhile, Razorkin Needlehead will be a lot easier to ignore or negate with life gain, as it only does half the damage of Sheoldred, and it doesn't gain its player anything
Greven, Predator Captain The problem with unconventional cards or strategies is that they can be very hit or miss
They're mainly for show since they're not legal or practical in most formats
Since in Disney Lorcana you build your own deck of at least 60 cards, these ready-to-play decks do all of the deck-building work for you, making it easy to sit down and play a game
I hope this has helped to break down the different options available, and made things a little clearer for your current decks or future builds