@1Charak2Ehehe. Sadly, I won't be able to re-create my usual strategy of Stardust Dragon spam since that's Yusei's thing, but I can always create a replacement custom trademark card for my character. :D

Eh, I liked using Sphreeze to stall, but she wasn't my main monster. I mostly alternated between Stardust and Hyper Psychic Blaster with Assault Mode cards, because I love Assault Modes. It wasn't an amazingly effective deck, but it was just a lot of fun. :D

...Speaking of how the game actually works, how will we end up handling the duels, anyway? Will we just use some kind of online dueling program and play them out that way, or just write up bullshit based on our decks so everyone always has the perfect card to "NOT SO FAST!" with?

If I RP this, I'll end up making up shit as I go along with a bunch of cards I make myself. I'm most interested in building a unique themed deck after all.

Might be interested- with some questions.

When you say Utopia, do you mean all the Numbers? Do you mean just Manga Numbers that have influence from the wielder? Or the Anime numbers that are Astral's memories? What about the Number monsters that have been in neither the anime nor the manga such as Crooked Cook?

When you say Synchro Dragon, do you mean dimension dragons? Are Supreme King Servant Clear Wing, Clear Wing Fast Dragon, or White Wing Magician (a Synchro Dragon by effect) Synchro Dragons?

I guess I could see someone turboing out jolkin with instant fusion, shipwreck of Theseus, twin triangle dragon, and topological bomber dragon but generally I don't feel like he's going to do much damage post-links. Even so, would Bishbalkin count too? What about the Earthbound Immortals?

Well, As long as you make those cards before you duel and not pull a 'I produce the winning card right here right now' Then sure I am okay with this.

MYSTERY MASK [+]

Mystery Mask
Normal Spell Card
Target 1 face-up monster you control with a level. Special Summon this card as a normal monster with a level equal to the target card’s current level (DARK-attribute/Beast-Warrior-type/ATK 0/DEF 0). A “Mystery Mask” Xyz Monster that has this card as an Xyz Material gains this effect: If this face-up card would be destroyed, you can detach 1 Xyz Material from this card instead.

Mystery Mask Promoter
Level 3 DARK Beast-Warrior-type Pendulum Effect monster
0 ATK / 200 DEF
Scale 4/4
[Pendulum Effect]
Once per turn, during your Battle Phase, target 1 “Mystery Mask” xyz monster you control that attacked this turn: Special Summon 1 “Mystery Mask” xyz monster from your Extra Deck with a different Rank than that monster (This summon is considered an Xyz Summon) using the target monster as material (Xyz materials attached to that monster also become Xyz Materials on that card).
[Monster Effect]
You can discard this card to add 1 “Mystery Masked” monster to your hand from your deck. You can banish this card from your GY to target 1 “Mystery Mask” monster you control: It can attack your opponent’s monsters once each.

Mystery Mask Referee
Level 2 DARK Beast-Warrior-type Pendulum Effect Monster
0 ATK / 0 DEF
Scale 4/4
[Pendulum Effect]
Once per turn, you can add 2 “Mystery Mask” Pendulum Monsters from your Deck to your Extra Deck face-up. If a “Mystery Mask” monster you control battles, neither player can activate effects until the end of the damage step.
[Monster Effect]
You can banish this card: Special Summon 1 “Mystery Masked” monster from your hand, deck, or face-up in your extra deck. That monster’s level becomes 2. You can only activate the effect of “Mystery Mask Referee” once per turn.

Mystery Masked Golden Boy
Level 1 EARTH Beast-Warrior-type Pendulum Effect monster
300 ATK / 200 DEF
Scale 4/4
[Pendulum Effect]
If you control no monsters, you can Special Summon this card from your Pendulum Zone.
[Monster Effect]
If this card is Special Summoned, you can add 1 “Mystery Mask” from your deck to your hand. While this card is in the GY, except during the turn it is sent there, you can target 1 “Mystery Mask” in your GY: Shuffle the target back into your deck, then add this card from your GY to your Extra Deck face-up. You can only use each effect of “Mystery Masked Fighter” once per turn.

Mystery Masked High Flyer
Level 1 EARTH Beast-Warrior-type Pendulum Effect monster
100 ATK / 100 DEF
Scale 4/4
[Pendulum Effect]
If you control no monsters, you can destroy this card: Special Summon 1 “Mystery Mask” monster from your Extra Deck, but send it back to the Extra Deck during the End Phase.
[Monster Effect]
If this card is Special Summoned from the Extra Deck: Add 1 “Mystery Mask” from your deck or GY to your hand. During your turn, while this card is in the GY and you control only 1 monster: All monsters on the field gain 900 attack points.

Mystery Masked Jobber
Level 3 EARTH Beast-Warrior-type Pendulum Effect monster
0 ATK / 0 DEF
Scale 4/4
[Pendulum Effect]
Once per turn, you can target 1 “Mystery Masked” monster you control: That monster’s level becomes 3 until the End Phase of this turn, then destroy this card.
[Monster Effect]
If this card is Special Summoned to the Extra Monster Zone: Banish this card, then send it to the GY during your next Battle Phase. If this card is in the GY, you can target 1 “Mystery Masked” Xyz monster you control: Attach this card to the target as an xyz material.

Mystery Mask Technician
Level 8 EARTH Beast-Warrior-type Pendulum Effect monster
0 ATK / 4000 DEF
Scale 4/4
[Pendulum Effect]
You can target 1 “Mystery Masked” monster you control: That monster’s level becomes 8 until the End Phase of this turn, then send this card back to the hand.
[Monster Effect]
You can discard this card: Place 1 “Mystery Masked” Pendulum monster in your Pendulum Zone except “Mystery Mask Technician”.

Mystery Masked Shadow
Rank 1 DARK Beast-Warrior-type Xyz effect monster
450 ATK / 0 DEF
Scale 0/0
[Pendulum Effect]
Once per turn, if you control no cards in your other Pendulum Zone: Set 1 “Mystery Mask” Pendulum Monster in your Pendulum Zone.
[Monster Effect]
2 level 1 “Mystery Mask” monsters
If you can Pendulum Summon Level 1, you can Pendulum Summon this face-up card in the Extra Deck. Your opponent takes any battle damage you would have taken from attacks on this card. If this card in the Monster Zone is destroyed by battle or card effect: You can place this card in your Pendulum Zone.

Mystery Masked Twin Dragons
Rank 2 WIND Beast-Warrior-type Xyz effect monster
1200 ATK / 300 DEF
Scale 0/0
[Pendulum Effect]
You can target 1 “Mystery Mask” Pendulum Monster on the field: Special Summon this card into the target card’s Monster Zone, then place the target card on this card’s Pendulum Zone.
[Monster Effect]
2 level 2 "Mystery Mask" monsters
This card can make two attacks on monsters each Battle Phase. If this card battles, you can detach 1 Xyz Material from this card: The original attack of the battling monsters becomes the average attack of both monsters until the end of this turn. If this card in the Monster Zone is destroyed by battle or card effect: You can place this card in your Pendulum Zone.

Mystery Masked Liger
Rank 3 LIGHT Beast-Warrior-type Xyz Effect monster
1000 ATK / 0 DEF
Scale 0/0
[Pendulum Effect]
Once per turn, you can target 1 Xyz Monster you control: Attach 1 card on your opponent’s side of the field to the target monster as xyz material.
[Monster Effect]
2 Level 3 “Mystery Mask” monsters
If you can Pendulum Summon Level 3, you can Pendulum Summon this face-up card in the Extra Deck. During either player’s turn, you can detach 2 xyz materials from this card: Destroy 1 monster your opponent controls, inflict damage to your opponent equal to this card’s ATK. If this card in the Monster Zone is destroyed by battle or card effect: You can place this card in your Pendulum Zone.

Mystery Masked Saint
Rank 8 LIGHT Beast-Warrior-type Xyz effect monster
3000 ATK / 2000 DEF
Scale 0/0
[Pendulum Effect]
You can destroy this card: The original attack of all face-up monsters your opponent controls becomes 0 until the End Phase of this turn.
[Monster Effect]
2 level 8 “Mystery Mask” monsters
While you have monsters in your Pendulum Scales and a “Mystery Mask” monster face-up in the Extra Deck, you can Pendulum Summon this card regardless of your Pendulum Scales. If this card battles, your opponent cannot activate cards or effects until the end of the Damage Step. If this card in the Monster Zone is destroyed by battle or card effect: You can place this card in your Pendulum Zone.