The amount of maindeckable artifact removal in Cube is slim, and most of it is attached to a four+ mana creature (Acidic Slime, Indrik Stomphowler, etc.), so the Shrine is rarely dealt with before its prime
Youll want to copy creatures with powerful ETBs for guaranteed value
(Usually, no!) White Auracite A is a more accurate depiction Moenbryda's white auracite crystal, but White Auracite B is a more straightforwardly appealing card and still gets the gist across, so that one made it into the Commander file
If you want to take it even further then I recommend adding protection like Pyroblast, more tutors like Doomsday, more fast mana like Mana Crypt, etc
ONE PIECE Card Game Booster Pack Release: 500 Years in the Future [OP-07] Releasing on 24 February 2024, there'll be a total of 126 cards to collectplus one bonus card following the international release in June