I hope we see more of them soon both with new mechanics and as lore devices
The event also uses a tiered access format
Remember, these cards care about how much mana you actually spent on the spell, not the printed mana value so the higher tiers of Ice Magic and Thunder Magic, the flashback casts of Dreams of Laguna and Laughing Mad, and a big Syncopate or Choco-Comet will all work to trigger your stuff
But be careful when you try to feed your clan, because Burn will often have 4+ ways to handle this card in the maindeck alone
In any ONE PIECE Card Game set, the standout card (if one exists within the set) is the Manga Rarea mega-rare card that features illustrations from the One Piece manga in the background
Sure, its less efficient than Green Sun's Zenith, but you can fetch any permanent