People just keep cracking these cases early.
here is the list of the leaks written:
LC5D-EN002 Junk Synchro (Secret)
LC5D-EN022 Unknown Synchron (Secret)
LC5D-EN041 Formula Synchron (Secret)
LC5D-EN074 Crimson Blader (Secret)
LC5D-EN092 Glow-Up Bulb (Secret)
LC5D-EN101 Black Garden (Secret)
LC5D-EN118 Blackwing – Vayu the Emblem of Honor (Secret)
LC5D-EN161 Meklord Astro Mekanikle (Secret)
LC5D-EN183 Dverg of the Nordic Alfar (Secret)
LC5D-EN203 Gleipnir, the Fetters of Fenrir (Secret)
LC5D-EN211 T.G. Hyper Librarian (Secret)
LC5D-En212 T.G. Wonder Magician (Secret)
LC5D-En226 Super-Nimble Mega Hamster (Secret)
LC5D-EN251 Emergency Teleport (Secret)
Tanngrisnir of the Nordic Beasts (Secret)
Guldfaxe of the Nordic Beasts (Secret)
Meklord Astro Dragon Asterisk (Secret)
LC5D-EN018 Effect Veiler (Common?)
LC5D-EN031 Stardust Dragon (Common?)
LC5D-EN047 Advanced Draw (Super or Ultra)
LC5D-EN048 Cards of Consonance (Super or Ultra)
LC5D-EN049 Tuning (Common?)
LC5D-EN059 Junk Warrior (Super or Ultra)
LC5D-EN099 Black Rose Dragon (Common?)
LC5D-EN136 De-Synchro (Super or Ultra)
LC5D-EN232 Magical Android (Super or Ultra)
LC5D-EN247 Orient Dragon (Super or Ultra)
LC5D-EN231 Goyo Guardian Super