A mission on stage 6 of Zexal that reads “use rank 4 or higher monster cards 2 times in one duel world duel” am I missing something? What do I have to do?
Summon 2 Rank 4 Xyz Monsters in the same Duel. Yuma starts with the Utopia skill so if you're diligent you can easily do this since everyone got a Prismatic Zubaba General for free, which is a Rank 4 Xyz.
you need to use rank 4 or higher monster cards 2 times in one duel world duel
You must do 2 XYZ-Summons, because only these monsters have a rank.