By far the weirdest activated ability I know of is Lightning Storm, the card that used to be the win condition in Modern Ad Nauseam decks
Additionally, the Japanese set includes gym box promos and other variants not available in English
The unique Necron flavor makes even formerly benign artifacts such as Caged Sun feel quite sinister and I think that Warhammer 40,000 fans will see that a lot of thought went into the reflavoring behind these reprints
My personal take on this deck is that it has all of the makings of a successful tier 1 deck, but it might need to see a few revisions to have a shot at being the absolute best
It was so heavily played that I ran False Cure in one of my decks to kill someone who cast Congregate on themself
Its gameplay mechanics revolve around collecting coins, which ties into its evolution method, transitioning into the powerful Gholdengo when a specific number of coins are collected