Even with "World Key" available, the deck's swarming takes time and tends to rely on Spells and Traps that need set-up, like "World Legacy Landmark" and "World Legacy Succession"
For example, the Tarot deck, originally for competitive card games, later morphed into a tool for fortune-telling
The Transformers cards available in The Brothers War products are: Prowl, Stoic Strategist / Prowl, Pursuit Vehicle Ratchet, Field Medic / Ratchet, Rescue Racer Jetfire, Ingenious Scientist / Jetfire, Air Guardian Blitzwing, Cruel Tormentor / Blitzwing, Adaptive Assailant Starscream, Power Hungry / Starscream, Seeker Leader Slicer, Hired Muscle / Slicer, High-Speed Antagonist Arcee, Sharpshooter / Arcee, Acrobatic Coupe Blaster, Combat DJ / Blaster, Morale Booster Cyclonus, the Saboteur / Cyclonus, Cybertronian Fighter Flamewar, Brash Veteran / Flamewar, Streetwise Operative Goldbug, Humanity's Ally / Goldbug, Scrappy Scout Megatron, Tyrant / Megatron, Destructive Force Optimus Prime, Hero / Optimus Prime, Autobot Leader Soundwave, Sonic Spy / Soundwave, Superior Captain Ultra Magnus, Tactician / Ultra Magnus, Armored Carrier Secret Lair Drops Three Secret Lair Drops were released as part of the Transformers collaboration, and you could buy them together as the Transformers: Foil Bundle and Transformers: Non-Foil Bundle
Construction Finally, the construction of the card is another factor to keep in mind
