Three of them have triggered abilities while The Ur-Dragon has a cost-reduction ability for your other dragons
Note that the only differences between the Paldea Evolved/Paldean Fates version of the Ceruledge and the Pokemon Day Promo are the stamp and the foil treatment, so if you did want to get hold of the card to use in a Pokemon TCG deck, youre better off just buying the standard version
Clear Wing Synchro Dragon!" Yugo explains that the effect of "Dice Roll Battle" will force all of his opponent's monsters to battle with "Clear Wing", and "Chanbara" is forced to battle first, which activates its effect to increase its ATK by 100
With a deck playing Blastoise ex, you want to have an engine which can easily find enough cards to allow you to use Twin Cannons for its full effect every turn
It cannot be, as the limited programming space of a GBA cartridge probably wouldn't have been able to get all the original effects of the 900 cards available in this (By the way, you gotta admit that 900 is still very impressive)