Its GX attack, Dark Mist GX , is cheap and mildly disruptive, placing one of the foes Benched Pokmon and all cards attached to it back into their hand, but there are far better GX attacks out there and this one is probably best used in an emergency where its absolutely critical rather than depending on it every game
3 Legendary Treasures $3,795 A Sparkling Jewel Legendary Treasures might be the most divisive set on the list, given its all-gold Reshiram chase cards that can divide a room quicker than a vintage vs modern debate
Battles are, as was to be expected, a dumbed down and simplified version of the main Pokmon TCG
Sure, I can just use the cards, but if this can get folded into Scion of Draco rainbow decks in Modern, even out of the sideboard, that exiles a meaningful amount of their deck
Some of the other Leylines protect you from threats which may give you time to realize some bigger strategies like an Approach of the Second Sun and Memory Deluge combo