It is cast with X equal to zero, but it still acts as a removal spell that scales up with the board
As you can see in the image gallery above, Hidden Fates will also include cards showcasing Pokemon in their Shiny forms, like Charizard-GX and Lucario-GX
If my hunch regarding collation is correct (see the post on Base Set above), that would indicate the non-English variants of this set used sequential collation just like the English version, which constitutes a change compared to Base Set
Or perhaps its the fact that this is secretly a mill win condition in disguise
These digital errata are a lot more aggressive than print ones, but were originally only used for the digital exclusive cards introduced in Historic Horizons
It features only 96 cards, 16 of which are new