**What are the key differences between different card types in Future Card Buddyfight, such as Monster, Spell, and Impact cards, and how do they affect gameplay strategy?
In what ways do promotional or limited-edition Future Card Buddyfight cards, such as crossover cards, affect the formal tournament scene and card collection trends?
How has the introduction of Omni Lords and the Fifteenth Omni Lord shifted the meta in Future Card Buddyfight, and what challenges do they present for deck building?
How do "Buddy Rare" cards differ from regular cards in terms of design and gameplay impact, and how can players effectively incorporate them into their decks?
What are the key differences between the various worlds in Future Card Buddyfight, such as Dragon World, Magic World, and Ancient World, and how do these differences influence gameplay strategies?
Have there been any significant changes or expansions in the Future Card Buddyfight card game that have impacted its competitive scene or collection value?