- Wiretap
- Wise Core
- Wisel Attack
- Wisel Attack 3
- Wisel Carrier
- Wisel Guard
- Wisel Guard 3
- Wisel Top
- Wish of Final Effort
- Witch of the Black Forest
- Witch of the Black Rose
- Witty Phantom
- Wolf in Sheep's Clothing
- Wonder Clover
- Wonder Garage
- Wonder Wand
- Wood Remains
- Worm Bait
- Worm Drake
- Wotan's Judgment
- Wroughtweiler
- X-Head Cannon
- XY-Dragon Cannon
- Xyz Colosseum