This deck works very well
- Gravity Axe will lock down Yugi's defense position monster
- Horn of The Unicorn so Valkyrion cannot get over Labyrinth Wall's defense
- Labyrinth Wall + Shield & Sword + Unicorn + double Gravity Axe = 4700 ATK, enough to bring Vassal's ATK into over 10000. Just make sure you activate Shield & Sword first, then summon Vassal, use Secret Pass and Union Attack before you equip the second Axe to Labyrinth Wall
- You don't need to bring AMA, because Yugi won't activate Order to Charge on your last turn
- yeah you can use The Fiend Megacyber to replace one Axe
- Yugi will never use OTC as long as you keep your LP 4000. Use Abyssal Designator on the last turn before you activate Shield & Sword
You must be very unlucky. Yugi only has 1 copy of Alpha, Beta, & Gamma. The chance is very little for him to get all the pieces in the early game, and you should have the highee chance to draw Unicorn before he could summon Valkyrion
Sorry dude, that may have been the case when he was first added to the gate. But he now uses OTC even if you have 4000 LP. He OTC'd my lab wall equip with Grav Axe + Horn of the Unicorn.