Not confirmed for release, but whether or not you believe that is your problem! (except OuTerverSe Burst Oblivion)

ツイン・ヴォルテッカー Twin Vortexer
Level 4 LIGHT Galaxy Effect Monster
ATK 1000
DEF 1000
【REQUIREMENT】If there are no monsters in your GY OR the only monsters in your GY are Galaxy monsters.
【EFFECT】Send the top 3 cards of your Deck to the GY, then, you can choose 1 “Fusion” in your GY and add it to the hand. If you add it, you can choose 1 Normal Monster among the cards sent to the GY with this effect and Special Summon it to your field face-up.

フューリー・ノヴァ Fury Nova
Normal Spell Card
【REQUIREMENT】 Shuffle 3 LIGHT Galaxy monsters from your GY into the Deck.
【EFFECT】Draw 1 card, also, if you returned a Fusion Monster with this effect’s requirement, you can choose 1 face-up Level 8 monster on your opponent’s field and destroy it.

ギャラクティカ・リビルドアーマー Galactica Rebuild Armor
Normal Trap Card
【REQUIREMENT】When an opponent’s monster declares an attack.
【EFFECT】 Choose 1 Equip Spell Card in your GY and equip it to a face-up Galaxy monster on your field, then, neother monster is destroyed by that battle.

ギャラクティカ・イリテイト Galactica Irritate
Normal Trap Card
【REQUIREMENT】 When a card is sent to the opponent’s GY.
【EFFECT】Choose 1 face-up LIGHT Galaxy monster on your field and make it gain 100 ATK x [The original Level of the monster chosen by this effect.] until the end of the turn.

Note: Otes’ Deck is an “OuTerverSe” Deck (which is short handed as OTS), and appears to be based on the parallel realities called “Somewhere Like Here” that Yudias observed because of Quaidul.

OTSニードルメイカー OuTerverSe Needlemaker
Level 4 DARK Machine Effect Monster
ATK 1300
DEF 800
This card’s name is treated as “OuTerverSe” while in the GY.
【REQUIREMENT】 If this is the only monster on your field, send the top 3 cards of your Deck to the GY.
【EFFECT】 This card is treated as a Galaxy monster until the end of the turn, then, for the rest of this turn, of you would Tribute Summon a monster in Attack Position, this face-up card is treated as 2 Tributes, but you cannot attack with monsters, except Galaxy monsters.

Note: This monster is based on the reality where civilization exists in a universe where spikes are essentially everywhere.

OTSバグファンガス　OuTerverSe Bug Fungus
Level 2 EARTH Galaxy Effect Monster
ATK 1100
DEF 800
This card’s name is treated as “OuTerverSe” while in the GY.
【REQUIREMENT】 Send the top card of your Deck to the GY.
【EFFECT】 This card is treated as a Galaxy monster until the end of the turn, then, you can choose 1 face-down monster on the opponent’s field and reveal it.

Note: This monster is based on the reality where civilization came to exist on an Earth where all life is hybridized with Cordyceps.

OTSビュイギュワッゾ　OuTerverSe Byuigyuwazzo
Level 6 DARK Spellcaster Effect
ATK 1900
DEF 1600
This card’s name is treated as “OuTerverSe” while in the GY.
【REQUIREMENT】 Send 1 card from your hand to the GY.
【EFFECT】 This card is treated as a Galaxy monster until the end of the turn, then, you can choose 1 “OuTerverSe Diversity Scream” or 1 Field Spell Card in your GY and add it to the hand.

Note: This monster is based on the reality where civilization exists in a world with no ability to observe one’s self as reflections do not exist, and the only major figure capable of drawing portraits are Picasso esque artists.

OTSシルフィー・セイファート　OuTerverSe Sylphy Seyfert
Level 6 WIND Warrior Effect Monster
ATK 2000
DEF 800
This card’s name is treated as “OuTerverSe” while in the GY.
【REQUIREMENT】Send the top card of the Deck to the GY.
【EFFECT】This card is treated as a Galaxy monster until the end of the turn, then, all face-up monsters on your field gain 200 ATK x [The number of different Attributes of face-up on your field] uintil the end of the turn.

Note: I suspect this one might be based on the universe where Yudias was treated as a messiah.

OTSアシッドブロブ　OuTerverSe Acid Blob
Level 2 WATER Aqua Effect Monster
ATK 800
DEF 800
This card’s name is treated as “OuTerverSe” while in the GY.
【REQUIREMENT】 Send the top card of the Deck to the GY.
【EFFECT】
{Illegible}

Note: This monster is based on the reality where civilization came to exist in the acidic stomach of a massive super lifeform.

OTSバースト・オブリビオン OuTerverSe Burst Oblivion
Level 7 FIRE Pyro Effect Monster
ATK 2500
DEF 2500
This card’s name is “OuTerverSe” while in the GY.
【REQUIREMENT】Send 1 card from the hand to the GY.
【EFFECT】This card is treated as a Galaxy monster until the end of the turn, then, choose 1 non-Pyro “OuTerverSe” in your GY and Special Summon it to your field face-up, also that monster gains 700 ATK and cannot be destroyed by the effects of your opponent’s Trap Cards.

Note: This card is based on the universe where Earth achieved World Peace and was then promptly destroyed by a Gamma Ray Burst.

OTSリバース・ドメイン OuTerverSe Reverse Domain
Field Spell Card
【REQUIREMENT】None
【EFFECT】 While this card is face-up in a Field Zone, face-up non-LIGHT monsters that are Galaxy-Type on the field of a player who has 5 or more “OuTerverSe” with different Types in your GY gain 1500 ATK. monsters on the field of a player who controls 3 face-up monsters with different types cannot be destroyed by effects.

OTSダイバーシティ・スクリーム OuTerverSe Diversity Scream
Normal Trap Card
【REQUIREMENT】If there are 2 or more face-up monsters with different Types on your field when an opponent’s monster declares an attack.
【EFFECT】 The attacking monster loses 1000 ATK until the end of the turn. If there are 2 or more face-up monsters on your field with different Attributes, all face-up monsters on your opponent’s field lose 2000 ATK until the end of the turn.

Source: YU-GI-OH!.jp