What are the key differences between a Grade 0, Grade 1, Grade 2, and Grade 3 card in Cardfight!! Vanguard, and how do these grades affect a player's deck composition and game strategy?
How does the "Imaginary Gift" mechanic function in Cardfight!! Vanguard, and what strategic advantages do the different types of Imaginary Gifts (Force, Accel, Protect) offer to players?
What are the key differences between the "Triple Rare" (RRR) and "Special Parallel" (SP) card rarities in Cardfight!! Vanguard, and how do they affect gameplay or collection value?
Can you explain the significance of the "Vanguard" and "Rear-guard" positions in the game, and how do specific card abilities interact with these positions?
What are some of the most popular or impactful "Grade 3" units in the current Cardfight!! Vanguard meta, and what makes them stand out in terms of their abilities or synergy within decks?