No one knows the exact reason why Konami is deciding now of all times to finally release official Chinese Cards, but obviously having cards in a language you can understand is far better than having cards in a language you can sorta figure out

Adrestia Aetherwing, Golden-Scale Flagship Arcee, Acrobatic Coupe Balamb Garden, Airborne Bessie, the Doctor's Roadster Blitzwing, Adaptive Assailant Cyclonus, Cybertronian Fighter Damocles Base, Sword of Kang Esika's Chariot Flamewar, Streetwise Operative Goldbug, Scrappy Scout Golden Argosy Grond, the Gatebreaker Heart of Kiran Jackdaw Jetfire, Air Guardian Megatron, Destructive Force Optimus Prime, Autobot Leader Parhelion II Prowl, Pursuit Vehicle RMS Titanic Ratchet, Rescue Racer Shorikai, Genesis Engine Skysovereign, Consul Flagship Slicer, High-Speed Antagonist Starscream, Seeker Leader The Belligerent The Falcon, Airship Restored The Fantasticar The Fire Nation Drill The Indomitable The Last Ride The Lunar Whale The Omenkeel The Prima Vista The Prydwen, Steel Flagship The Regalia The Thanos-Copter Ultra Magnus, Armored Carrier Valor's Flagship Weatherlight Weatherlight Compleated

Blue-Eyes White Dragon (Official Card Game) XYZ-Dragon Cannon (Official Card Game) Red-Eyes Black Dragon (Official Card Game) Time Wizard (Official Card Game) Elemental HERO Avian (Rush Duel) Elemental HERO Sparkman (Rush Duel) Elemental HERO Burstinatrix (Rush Duel)
It is potentially the cheapest going by a silly margin at the bargain price of one mana