Its not exactly clear why decks have moved away from old Snappy in formats like Modern or Legacy, but that probably has to do with MTG becoming a more proactive game
The Tropical Frenzy attack both deals damage and accelerates your Energy strategy, dealing 150 damage and letting you attack any number of Basic Energies from your hand to your team in any way you like
Hypno is known to deal with dreams and looking at this, it seems pretty clear that this is some sort of dream state where Hypno is actively pointing in one direction and Clefairy pointing in the other
Size 8.8*6.3cm large size card
Eldegoss V can even recycle itself back into the deck with its Float Up ability, getting rid of a Pokemon that can easily be taken care of
This creates a logical, side-by-side comparison of the two variants, keeps the set number sequence intact, and makes it easy to confirm you have both versions of every card