Along with a new whisper character type and boost mechanic, we got to see the set's two cards at the new Iconic rarity, one featuring the Little Mermaid's Ariel, the other Hercules' Hades
Beyond Wikipedia, we can learn that despite being very weird and apparently unexplainable, ball lightning does indeed exist
Officially, it is not part of a block
If another card(s) you control leaves the field by an opponent's card effect, while this card is in your Monster Zone (except during the Damage Step): You can draw cards equal to the number of monsters with different names in your Main Monster Zone
While it offered a glimmer of hope to casual fans who couldnt sweat it out to a 1st-place tournament finish, the 1,200-copy limit meant it remained incredibly scarce