Yumi Sakibe

Yumi was the previous Vanguard before Jugo and Hana.

Option 1
Yumi's Ultimate Deck is composed of V Monsters, resultant of her using the powers of the previous Vanguards to fight Core. She eventually obtained the power of "Sophia", her true trump card, which she can Summon and control thanks to her V Monsters.

Option 2
Yumi uses a Reflection Deck, composed of clear monsters that become reflexes of other monsters. These monsters reflect Yumi's admiration for the past Vanguards, with her using them to mirror their iconic monsters.