Joshua looked at his hand and sighed. He had used up most of it last turn and his current hand of Gem-Knight Fusion, Gem-Knight Tourmaline, Gem-Knight Alexandrite, and Gem-Knight Obsidian left him with very few choices. Unless his plan worked he had no chance at winning. So time to lay it all on the table and hope for the best.
"I activate Gem-Knight Fusion from my hand and fuse Alexandrite, Tourmaline, and Obsidian to summon Gem-Knight Master Diamond!" He declared. On the field a giant chunk of diamond, bigger then the chunk of gemstone the other Gem-Knight's he had summoned thus had been, appeared on the field

"No you won't. I activate Spiritual Wind Art - Miyabi. I sacrifice Daigusto Falcos to return Diamond to the bottom of your deck. OR in this case, you're extra Deck." Amelia said as Falcos vanished along with the chunk of diamond.

Joshua cursed in his head. He had no hand now and his field only consisted of Armadillo. Obsidian would give him another card on the field but at this point it made no difference. Amelia's field was just too strong. Still, she deserved to win.
"Obsidian's effect summons Tourmaline in defense position. I also change Armadillo to defense position before ending my turn." He said, his tone resigned but a smile on his face nonetheless.

Amelia smiled sadly as she drew her card. She wanted to help Joshua, not knock him out. However, she knew if she held back know he would see it as a major insult and she wouldn't do that to him
"From my hand I summon Winda, Priestess of Gusto. And I reveal my facedown monster, Windaar, Sage of Gusto." she said, as another Winda and a man who could've been her and Kamiu's father appeared on the field" Winda attack you Armadillo while Musto will get rid of Tourmaline. Then Gulldos will attack you directly!"

Joshua watched his remaining defenses get trashed before the giant bird flew towards him. However Amelia had one last surprise.

I activate my face down, Blessings for Gusto. I return two Gusto monsters from my graveyard then special summon Daigusto Falcos from the grave." She said. Falcos appeared on the field and Gulldos' attack increased by another 600 points before hitting him." Now Falcos will finish you off Joshua!"

Joshua's smile widened as his lifepoints hit 0.
"Congratulations Alexis." He said, being careful to use Amelia's fake name" You really turned that around. You've improved a lot."

"Thanks." Amelia said, smiling back.

With a nod to each other they both left the field. Once no one could see her, Amelia allowed herself to place her hand over her heart, which was causing her a good amount of pain now that her adrenaline had died down. She had gotten too excited during the duel and she was regretting it now. After giving herself a few minutes to relax she walked back to the meeting place with Joshua.

...

Kamui and Obsidian watched the duel going on until it ended. Without a word to Lars they left to return to their respective partners, Kamui to Amelia and Obsidian to Joshua