Each Pokmon card has a set amount of health points, which, when they are reduced to zero, cause that player to discard that card and play a new Pokmon card in their place
If something looks too good to be true, what would they have done to make it work out
The same mistake happened when Sir Ian McKellen signed his Lord of the Rings Gandalf cards as Magneto three years ago, though the signed cards from that set were never released, instead boiled down into a substance that was then reformed and used for the cardboard that became the 1:1 The One Ring
The lands on my list don't all have the cave subtype, so any land that cares about another land being a "cave" will only care about the new The Lost Caverns of Ixalan cave lands
Thalias first strike gives it an edge in combat, while its tax ability slows down removal and combo decks