Yugi plays a Kuriboh/Multiply combo to protect his Life Points and uses his Living Arrow and Polymerization magic cards to fuse his Mammoth Graveyard to Kaiba's Blue Eyes Ultimate Dragon. This causes the Ultimate Dragon to decay and lose Attack points until it is weak enough for Yugi to attack. Refusing to lose from within a desperate state, Kaiba unexpectedly stands on a turret and warns Yugi that if he attacks, the impact force of the monsters battling will knock Kaiba off the castle and kill him. An internal conflict soon takes place between Yugi and Yami Yugi which causes the real Yugi to quickly stop his Celtic Guardian from attacking the Ultimate Dragon, enabling Kaiba to swiftly counterattack and win the duel so that he can gain the right to face Pegasus.