The second round of the Friendship Cup begins! The first bout is Yuzu vs Sergei! Yuzu charges into battle, intending to show Sergei the terror of a dimensional battle, but Sergei seems almost to be inviting her attacks, taking damage on purpose. Worried for his safety, Yuzu calls a halt to the Duel, but...
Once per turn, I can Special Summon one 
Melodious monster, Level 4 or below.