Japanese boosters will have Japanese-language versions of these cards, while other languages will have English-language versions
All packs will be opened and nothing will be shipped sealed
How about trying Arcbound Whelp, Dragon Whelp, Fledgling Dragon, Firescreamer, Furnace Whelp, Henchfiend of Ukor, Lightning Dragon, or any other firebreathing options at four mana instead
Any activated abilities already on the stack, or mana abilities behave as normal
You can get full details on what transfers over on the official site
their imagery often calls to mind the art style of the Pokmon animealbeit usually with additional depth