These are notes for everyone to come back to for refreshers. Will be updated throughout the story with more and more information.
Multiverse Chatroom Members
Black Sun (Yuno Fuji) (5Ds) (Administrator)
Prima Ballerina (Alexis Rhodes) (Yu-Gi-Oh! GX)
Goth Thunder (Thalia Grace) (Percy Jackson and the Olympians)
God's Tongue (Erina Nakiri) (Shokugeki no Soma/Food Wars)
Ashen Demon (Byleth Eisner) (Fire Emblem: Three Houses)
Devilukian Technician (Lala Satalin Deviluke) (To Love-Ru)
Sea Diva (Uta) (One Piece)
Chatroom Functions
Chatroom – You may talk to others in this room by thinking of what you want to type and send. You are also capable of taking pictures, screenshots, and more!
Sign-In – The Sign in feature! Obtain a random amount of points from 1 – 1000 once per week! Get a streak going to obtain bonus points!
Missions – By performing tasks in the real world, both daily and special tasks, you can obtain points and even items and abilities depending on your actions! Some missions may even lead you to different universes!
Shop – A place for you to spend the points you earn, allowing you to buy various items, abilities, skills, and talents from throughout the multiverse! The better or more valuable something is, the more expensive it is!
Gacha – You can risk your points in the Gacha for a random reward! You may get something worth more than what you put in, or something worth less! It's all down to the luck of the draw!
World Travel – You may use points to travel to different universes, so long as those universes have residents that are already part of the chatroom! (Example, you may not travel to the Naruto Universe if a Naruto Character is not within the Chatroom! But you may travel to the Pokemon Universe if a Pokemon Character is within the chatroom!)
Custom/Adjusted Cards
Yuno's Cards
Sin Deck
Main Deck
Pot of Deceit
Spell
Discard 1 card from your hand; Draw 2 cards.
Superbia the Glorious Sin
4 Star – DARK – Fiend/Effect
If this card is sent from your hand to the Graveyard due to a card effect; Special Summon this card from your Graveyard to your field in Attack Position. If this card is Normal or Special Summoned to your field, you may Special Summon 1 Level 4 or lower "Sin" or "Pandora" monster from your hand. You may only activate this effect of "Superbia the Glorious Sin" once per turn. While this card is face-up on the field, your opponent may only target this monster for attacks.
1800/900
Gula the Hungry Sin
1 Star – DARK – Fiend/Tuner
Once per turn, you may target 1 other monster on the field; reduce that monster's Level by 1 and increase this monster's Level by 1 until the End Phase. You may banish this card from your Graveyard; Reduce the Level of 1 "Sin" or "Pandora" monster you control by 1 until the End Phase.
500/0
Invidia the Spiteful Sin
3 Star – DARK – Fiend/Effect
If your opponent controls a monster: you may Special Summon this card from your hand. When this card is destroyed by battle and sent to the Graveyard, the monster that destroyed this monster loses 1000 ATK. When this card is sent to the Graveyard, send 1 "Sin" or "Pandora" monster from your Deck to the Graveyard.
1600/600
Accidia the Lazy Sin
4 Star – DARK – Fiend/Effect
If you control a "Sin" or "Pandora" monster besides "Accidia the Lazy Sin," you may Special Summon this card from your hand. When this card is Normal Summoned or Special Summoned, you may add 1 "Sin" monster from your Deck to your Hand. Once per turn, you may target 1 monster on the field: change that target to Defence Position. If you control a "Pandora" monster, and this card is in your hand (Quick Effect); you may discard this card from your hand: Fusion Summon 1 "Pandora" monster using cards on your field and/or from your hand as Fusion Material.
500/2200
Luxuria the Desired Sin
1 Star – DARK – Fiend/Effect
Your opponent cannot target this monster for attacks. If this monster is the only monster on your field, your opponent may attack you directly. Once per turn, you may discard 1 card from your hand and target 1 monster your opponent controls: take control of that monster until the End Phase of this turn. When this card is sent to the Graveyard from the field, if you control a "Sin" monster: Special Summon 1 "Pandora, Mistress of Black Magic" from your Hand, Deck, or Graveyard. You may only use this effect of "Luxuria the Desired Sin" once per turn.
0/0
Sin of Slaughter
Spell
Destroy 1 face-up "Sin" monster on your side of the field; Special Summon 1 "Sin" monster from your Deck. You may banish this card from your Graveyard, except the turn it was sent there; add 1 "Sin" monster from your Deck to your hand.
Pandora, Mistress of Black Magic
8 Star – DARK – Spellcaster/Effect
You may Special Summon this card (from your hand) by tributing 1 DARK monster you control. Once per turn, you may discard 1 card: add 1 Spell Card from your Graveyard to your hand. When this card destroys an opponent's monster by battle and sends it to the Graveyard, you may Special Summon that monster to your field in Defence Position. Your opponent may not activate spell cards during your turn while this card is face-up on the field.
2500/2000
Ira the Furious Sin
8 Star – DARK – Fiend/Effect
If the total number of "Sin" and "Pandora" monsters on your field and in your Graveyard with different names is Seven or more; you may Special Summon this card from your hand or Graveyard. You may only use this effect of "Ira the Furious Sin" once per turn. Once per turn, you may destroy 1 card your opponent controls. When this card declares an attack, your opponent may not activate Spell and Trap Cards until the end of the Damage Step.
3000/0
Sanctuary of Sin
Field Spell
When this card is activated, you may add 1 "Sin" or "Pandora" monster from your Deck to your hand. DARK monsters you control cannot be destroyed by your opponent's Spell/Trap Cards. You may destroy 1 "Sin" monster you control: Special Summon 1 "Sin" monster from your Deck with a lower Level than the destroyed monster. If this card is in your Graveyard, you may discard 1 card from your hand: add this card to your hand.
Avaricia the Craving Sin
3 Star – DARK – Fiend/Effect
You may discard 1 card from your hand; Special Summon this card from your hand or Graveyard. During your Main Phase 1: you may inflict damage to your opponent equal to the total number of "Sin" and "Pandora" monsters in your Graveyard x200. If you successfully inflicted damage this way, regain half of the damage dealt as LP. You may only use each effect of "Avaricia the Craving Sin" once per turn.
600/1400
Pandora's Box
Continuous Spell
This card can only be activated if the total number of "Sin" and/or "Pandora" monsters you control and are in your Graveyard is 7+. During your main phase: you may Special Summon any "Sin" or "Pandora" monster from your Graveyard. During your main phase; you may destroy monsters you control; destroy cards on your opponent's field equal to the number of cards destroyed by this effect. When this card is destroyed and sent to the Graveyard: you may Special Summon 1 "Sin" or "Pandora" monster from your Graveyard. You may only activate each effect of "Pandora's Box" once per turn.
Deceit of the Sins
Trap
When your opponent would activate a card or effect that would destroy 1 "Sin" or "Pandora" monster you control; negate that effect. If this face-down card is destroyed a card effect, you may Special Summon up to 2 Level 4 or lower "Sin" monsters from your Graveyard with their effects negated.
Barrier of Sin
Trap
When your opponent's monster declares an attack, you may change the attack target to 1 "Sin" monster you control. That monster cannot be destroyed by battle this turn. At the end of the battle, return that monster to its owner's hand.
Dark Tuner - Shadow Spirit
2 Star - DARK - Fiend/Dark Tuner
If you control another monster, you may Special Summon this card from your hand in Defence Position. If this card is used as Synchro Material, you may treat all other material monsters as having Minus Levels equal to their Levels. If a Synchro Monster is used as Material, you may treat that monster as a Dark Synchro Monster. When this card is used for a Dark Synchro Summon, you may draw 1 card.
0/0
Sin's Trickery
Continuous Trap
When your opponent targets a face-up "Sin" or "Pandora" monster you control with a card effect, you may send the top card of your Deck to the Graveyard to negate that effet. You may only use this effect of "Sin's Trickery" once per turn.
Damage Trick
Trap
Tribute 1 Face-Up monster you control; until the end phase if this turn, you take no damage.
Sin of Lies
Trap
Activate when your opponent would activate a card or effect that would destroy one or more cards you control. You may discard as many cards from your hand; target as many cards as you discarded: the targetted cards cannot be destroyed by card effects this turn. During the turn you activate this card, your opponent may attack you directly.
Earthbound God Tezcatlipoca
10 Star – DARK – Beast/Effect
While this card is face-up on the field, 'Earthbound God' monsters cannot be summoned. If there is no face-up Field Spell card 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 cannot be attacked by your opponent's monsters.
• This card is unaffected by your opponent's Spell/Trap Cards.
• During the End Phase, if this card was sent to the Graveyard or banished while on the field: Special Summon this card.
3000/2500
Earthbound Rage
Spell
Target 1 "Earthbound God" monster you control; it gains ATK equal to its DEF until the end of this turn. Destroy the targetted monster during the End Phase.
Extra Deck
Blue Storm Dragon, Maelstrom
8 Star – WATER – Dragon/Synchro/Effect
1 tuner + 1 or more non-tuner monsters
While this monster is face-up on your field, all monsters your opponent controls lose 100 ATK for every monster in your Graveyard. This monster can attack up to the number of non-tuner monsters used to Synchro Summon it. You may only use the following effects of "Blue Storm Dragon, Maelstrom" once per turn:
• When your opponent's Level 5 or higher monster activates its effect (Quick Effect): you may negate that card's effect and, if you do, destroy it.
• When this card declares an attack (Quick Effect): You may destroy 1 Spell/Trap card your opponent controls, and then draw 1 card. Your opponent may not activate the targeted card in response to this effect's activation.
3000/2500
Pandora, Magician of Zenith
9 Star – LIGHT – Spellcaster/Synchro/Effect
1 Tuner + 1 or more non-tuner Spellcaster monsters
If this card is Synchro Summoned using a monster with "Pandora" in its card name as material, you may add 1 Spell Card that lists specifically lists "Pandora" in its card text from your Deck to your hand. During your turn, you may target 1 other monster you control: this card gains that monster's ATK, but that monster cannot attack this turn. When your opponent activates a Spell or Trap Card or Effect (Quick Effect): You may negate the activation of that card or Effect and, if you do, banish it. You may only use each effect of "Pandora, Magician of Zenith" once per turn.
3000/2000
Sin of Pride - Superbia
-7 Star - DARK - Fiend/Dark Synchro
If this card is Dark Synchro Summoned using a monster with 'Superbia' in its name as Material then, during the turn it was summoned; this card is unaffected by your opponent's card effects. When your opponent declares an attack or targets a "Sin" or "Pandora" monster on your field; redirect that attack or card effect to this card. You may only use the following effects of "Sin of Pride – Superbia" once per turn:
• If this card is destroyed on your field and sent to the Graveyard, you may banish 1 'Superbia' monster from your Graveyard: Special Summon this card from your Graveyard but banish it when it leaves your field.
• If this card is banished, Special Summon 1 "Earthbound God" monster from your Deck but destroy it during the End Phase.
2600/2000
Akiza's Cards
Main Deck
Synchro Trick
Trap
You may tribute 1 monster you control: Special Summon from your Extra Deck 1 Synchro Monster with a lower Level and ATK than the Tributed monster (this Special Summon is treated as a Synchro Summon.)
Black Rose Guardian
Continuous Trap
When your opponent activates a monster effect, you may banish 1 Plant-type monster in your Graveyeard; negate the activation and effect of that monster. You may use this effect up to two times per turn.
Rose of Hope
Continuous Trap
Equip this card to a face-up "Rose" Dragon Type Synchro Monster or Plant type monster you control. When that monster is destroyed, you may destroy this card and Special Summon that monster from your Graveyard in Defence Position. When a face-up "Rose" Dragon Type Synchro Monster or a Plant Type monster you control would be destroyed by battle or card effect, you may banish this card from your Graveyard instead.
Rose of Rage
Continuous Trap
When your "Black Rose" Synchro Monster battles your opponents monster, they may send the top card of their Deck to the Graveyard. If they do not, then the battled monster is destroyed, and inflict 500 damage to your opponent.
All Cards specifically mentioning 'Black Rose Dragon' in its text have been changed to either.
"Rose" Dragon-Type Synchro Monster
Or
"Black Rose" Dragon-Type Synchro Monster.
This is why Blood Rose Dragon's effect triggered with Moonlight, and why Akiza could use Thorn of Malice on Moonlight.