The Power of the Future

Written by:

Disclaimer: I do not own nor am affiliated with the writers of Yu-Gi-Oh or Yu-Gi-Oh 5ds.

Summary: Hello everyone, I have decided to write a story where the signers become the dark signers in various ways. Read and find out how.

The story starts at the end of Leo and Luna's battle against Devack.

"Go Ancient Fairy Dragon win us this duel! Eternal Sunshine!" Luna declared before Ancient Fairy launched its attack bringing Devack's life points to zero.

"Nooooooooooooooooooo!!" Devack yelled as he turned to dust with no trace of him remaining.

Yet there was something that did remain after Devack's defeat and it had its sights set on Luna. Before anyone could make a move, the spirit of Cusillu was quickly heading straight for Luna.

"No Luna, watch out," Leo yelled in warning.

But it was too late. The spirit of Cusillu had jumped inside her body and made Luna disappear from the area. Yusei noticing Luna's sudden disappearance immediately ran over to where Leo was.

"Leo, what happened to Luna?" Yusei asked in worry.

"I don't know. We had just defeated that giant monkey and then suddenly a little monkey came out of no where, ran over, and jumped into Luna's body before she disappeared," Leo explained.

Suddenly Yusei's mark started to burn and he instantly knew that there was one less Signer in the battle.

"This is bad," commented Yusei knowing that he had lost another friend.

With Luna

"Get out of me you evil monkey!" Luna yelled, clenching her head in pain from trying to fight off the powerful spirit inside of her.

"It's no use child. You will soon belong to me," Cusillu explained as it expelled more of its power inside her body causing Luna's mark to throb intensely and her to scream out in pain.

It was too much for the young Signer to handle and Cusillu now had control over her body. All that was left for it to do was take control of her soul. So with that Cusillu, in Luna's body walked to the edge of the bridge and dove into the energy reactor.

Meanwhile with Roman

After Roman killed Greiger to turn him into a Dark Signer, Uru started talking to Roman about a new plan to handle the Signers. Roman wasn't too happy about it but if it was what was best for the Earthbound Gods and his King, he would accomplish it without question.

Roman then left and headed to where Yusei and Leo were. It didn't take long for the two to notice Roman's appearance and to start questioning him.

"What have you done with my sister?!" asked a very angry Leo which only made Roman chuckle.

"Where's Luna?!" reiterated Yusei also losing his patience with Roman.

"I have a proposition for you Yusei," announced Roman.

"Proposition?" wondered Yusei, who was not liking where this was going.

"It's very simple really. I'll give the girl back but you must accept the spirit of Uru inside of you," he explained with a smirk on his face.

"What?!" both Yusei and Leo exclaimed in surprise.

"That's right the girl's life for yours," Roman summed up for them.

"How do I know you'll hold your end of the deal?" questioned Yusei with a serious look on his face.

Roman snapped his fingers and soon Luna appeared several feet away from them. Yet she looked far from comfortable as she was sitting down on the ground with various chains keeping her in her place.

"Luna!" shouted Leo from seeing his sister bound up like that.

"Leo…Yusei…help," she pleaded in a weak voice before her head slumped forward from her losing consciousness.

"No Luna!" cried Leo in fright and concern.

"Let her go now!" demanded Yusei, glaring daggers at Roman.

"Not until you agree to the terms," Roman stated which brought a look of defeat to Yusei's face.

"Fine…I will accept the spirit of Uru," proclaimed Yusei, knowing this was the only way to save Luna.

"Yusei, don't!" shouted Leo not wanting to lose his idol either, but Yusei didn't back down from this.

"I'm ready," Yusei replied, bringing a satisfied smirk on Roman's face.

"Master he is now yours," was the last thing Roman said.

It wasn't long before Uru left Roman and became a small spider causing Roman to turn into dust. Uru then headed immediately over to Yusei ready to claim its new host.

"No! I can't let this happen again!" Leo thought as the spider was getting closer and closer to Yusei.

"Yusei!!" screamed Leo.

Leo with all his strength pushed Yusei out of the way and the spirit of Uru went into Leo instead before he too vanishes from the region along with his sister.

"Leo!!! Luna!!!" Yusei cried in desperation, now that he knew he had lost them both.

"Now both are gone and I couldn't do a thing to stop it!"

With Leo and Luna

Leo was now on the bridge above the glowing energy reactor with Luna who was only a few paces away from him. Though now instead of being chained down she was chain free and standing face to face with Leo. Not only that but now she was wearing a black shirt and black shorts both with yellow lines on them. Her eyes were almost all white with a little dot of black in the middle and her birthmark glowed a dangerous red color.

"Luna? What-what happened to you?" Leo asked in shock from instantly noticing his sister's new appearance.

Luna closed her eyes for a second and let out a sigh before she answered her brother's question.

"I am the new Dark Signer that harbors the mark of the ape. And it was thanks' to the thing that's under us that I was reborn as such," explained Luna.

"But you…Yusei…how…?" stammered Leo still trying to figure out what was going on.

"Leo, don't hurt your brain because you can't afford to lose it. All you need to know was that it was a trap and as usual you find a way to mess things up," she exasperated before a light smirk came to her face.

"So then it's only right that you take responsibly for your actions and become the Dark Signer for Uru."

Just then Leo felt a throbbing inside of his head and felt control of his body slipping from him. The spirit of Uru had still been inside Leo and now was ready to take over.

"Luna, please! I know you're in there! Help me!" begged Leo as he felt himself losing more control as his body was moving closer to the side of the bridge.

"Uru, wait!" abruptly shouted Luna causing Leo/Uru to turn his head in her direction.

Inside Leo was happy and relieved because he thought his sister was finally fighting whatever was controlling her, but her next words painfully pieced his heart.

"I want to have some fun with him first," she responded with a growing smirk forming on her lips.

"Very well," replied Uru before he let Leo gain control back of his body, though it did not leave Leo.

"Here's the deal Leo, we will duel. If you win I will no longer be a Dark Signer and you get out of here scot free. However, when you lose you have to accept Uru's offer," announced Luna in a serious way.

"Luna, come on! Snap out of it!" screamed Leo, hating seeing his sister like this.

"Quit whining, after all I'm giving you a chance for freedom aren't I?" Luna replied with a slight roll of her eyes.

"Fine, if this is the only way to save you and get us both out of here, then let's duel!" Leo shouted.

Purple flames soon appeared from the ground in the shape of an ape and surrounded the two.

"DUEL!!" both shouted.

LP (Luna- 4000 Leo- 4000)

"I go first," said Leo.

"I summon Morphtronic Celfon in attack mode and then I'll use his effect!"

The light on the monster's chest started to move on the numbers till it landed on a 2.

"Sweet!" exclaimed Leo as he drew 2 cards and picked one put it face down on the field.

"Then I'll summon Morphtronic Magnen in attack mode and end my turn."

"My turn. I draw one card and summon Moonlight Unicorn in attack mode!" Luna exclaimed.

A dark colored Unicorn with a brown horn appeared on the field.

"Where did you get that card from?!" asked Leo.

"It's one of the many gifts of becoming a Dark Signer. You will get your own dark cards when you lose," Luna explained.

"Well that's not going to happen because I won't lose!" Leo shouted.

"We will see. Moonlight Unicorn attacks Morphtronic Magnen!" declared Luna.

Moonlight Unicorn ran with its horn out in front that pieced the monster, destroying Morphtronic Magnen and reducing Leo's life points.

LP (Luna- 4000 Leo- 2300)

"Scrap metal all around," Luna joked.

"I lay down 2 cards and end my turn."

"My turn," Leo said.

"I summon Morphtronic Clocken in attack mode. Next I summon Morphtronic Celfon and use its effect. The Celfon's dialing now!"

The lights started flashing in random order before the number 6 was lit.

"Sweet the best roll ever!!" Leo shouted while drawing 6 cards from his deck.

"Next I summon Morphtronic Scopen in defense mode. This activates his effect and increases his level to 4. Now I can tune Morphtronic Scopen with my level 1 Celphon and my level 2 Clocken! Docking strength with courage to protect world peace! Synchro Summon! Envoy of love and justice, Power Tool Dragon!!"

"Now Power Tool Dragon Att…" Leo started, but Luna immediately interrupted him.

"Are you sure that you want to attack me Leo. Remember this is a shadow duel which means the loser dies. So can you do it? Can you kill your younger twin sister?" Luna says with a slight taunting in her voice.

"I...I end my turn," replied a dejected Leo.

Power Tool Dragon gave Leo an understanding look but a frown still was evident on its face.

"You're such a fool. If you had attacked me now you might have had a decent chance of winning," Luna stated with a mock behind her words.

"But since you foolishly ended your turn, it's mine now. Draw! …I play the spell card Dark Rush. With this I can pay 3000 life points to special summon 1 dark tuner from my hand. I choose Dark-Tuner Evil Pixie.

LP (Luna- 1000 Leo- 2300)

Now I dark tune my level 11 pixie with my level - 4 Moonlight Unicorn! When shadows are devoured by even darker shadows the curtain pulls back and reveals Ancient Fiend Dragon!!"

A dark mist covered the field before it slowly disappeared to reveal the now dark dragon. It has black wings, a brown body, and a dark gold head.

"Leo, meet the new and improved Ancient Fairy Dragon, Ancient Fiend Dragon!!" proudly announced Luna which made Leo gain a look of fear on his face.

"And because I used Evil Pixie to dark summon my dragon its effect makes you lose 2000 life points!" Luna exclaimed.

Dark Flames from Ancient Fiend shout out from it and attacked Leo causing him to scream out in severe pain.

LP (Luna- 1000 Leo- 300)

"Next I play the field spell Final Turn Stage!" Luna stated.

"To activate this card's power I have to reduce my life points to 1 but it's worth it when you won't be able to use any spell, trap, or monster effects until the end of my turn."

"What?" Leo shouted.

LP (Luna- 1 Leo- 300)

"But that's not all. Thanks to Ancient Fiend's special ability, I can also summon one level 5 or higher monster straight to the field!" Luna shouted in glee.

"Ohh noo!" worried Leo knowing the exact card his sister was planning to summon.

"Ohh yes! The monster I choose is my Earthbound God! Appear now Earthbound Immortal Cusillu!!" Luna shouted.

The large Ape immediately appeared on the field behind Luna.

"Now Ancient Fiend Dragon, Cusillu attack Leo and send him to the shadows!!!" Luna shouted.

The two powerful monsters launched their attacks that destroyed Power Tool Dragon before slamming painfully and forcefully into Leo causing him to fall.

"Noooo Lunaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!" Leo screamed with his life points hitting zero as he continued to fall into the abyss of the energy reactor.

"Now spirit of the spider Uru! Claim his soul and make him your new Dark Signer!" Luna shouted.

A dark light came from the abyss and now the Mark of the Spider had a new vessel.

And that is the end of chapter. In the next chapter a romantic moment between Jack and Carly and there is another new dark signer. Here are Luna's cards.

Dark-Tuner Evil Pixie

Level: 9

Atk: 200

Def:0

If this card is used for the dark synchro summon of a dark monster inflict 2000 damage to the opponent.

Moonlight Unicorn

LV: 4

Atk: 1800

Def: 0

Once per turn you can draw 2 cards from your deck.

Ancient Fiend Dragon

1 non tuner monster - I dark tuner monster

Atk: 2100 Def: 0

LV: -7

Once per turn you can send one card on the field to the graveyard and make the opponent lose 1000 life points and add 1 LV 5 or higher to your hand. Once per turn you can special summon 1 LV 5 or higher monster to the field.

Earthbound Immortal Cusillu

Atk: 2800 Def: 0

Lv: 10

"Earthbound Immortal" monsters cannot be Summoned while this card is face-up on the field. When there is no Field Spell Card face-up on the field, the following effects are negated, and this card is destroyed during the End Phase: ● This card can attack your opponent directly. ● This card is unaffected by the effects of your opponent's Spell and Trap Cards. ● Your opponent cannot select this card as an attack target. ● When this face-up card would be destroyed, other than by its own effect, you can Tribute 1 monster you control to prevent this card being destroyed by battle and halve your opponent's Life Points.

Dark Rush

Spell card

You can pay 3000 life points to special summon 1 dark tuner from your hand.

Final Turn Stage.

field spell card

You can reduce your life points to 1 and the opponent can not use any spell, trap, or monster effects.