Bloom Seymour listed most of these in the Bloom Beasts thread, though RKS has asked that I create a list of them all for reference here. Most of them are created by Cibryll (who posted most of RKS's as Bloom Seymour) and RKS, if they were created by anyone, it'll have a letter to indicate so.

• Agony Dancer(RKS)
• Ancient Flower Dragon(Cibryll)
• Alluring Dominate Fairy** (Luna)
• Antique Gear Gargoyle**(Cibryll)
• Amalgamation Horror** (C)(RKS)
• Apocalypse Wolf(RKS)
• Armageddon Serpent**(Cibryll)
• Armoured Rocky Horror**(Cibryll)
• Bioblaze Bear(RKS)
• Bloodstained Karma Berry** (Luna)
• Breach Beetborg (Cibryll)
• Brawn Boulder** (Sarie)
• Cataclysmic Catastrophe Cat**(Alice)
• Catastrophe Cat**(Alice)
• Charm Maiden(RKS)
• Corruption Jellyfish(RKS)
• Cosmic Meteor Shark**(Alice)
• Cyberraging Rilla**(C)(Cibryll)
• Cybernetic Lass (Cibryll)
• Diaphanous Spider(RKS)
• Diaphanous Spider Girl**(Cibryll)
• Demon Scythe Beetle** (Luna)
• Demon Sponge**(Luna)
• Demon Sponge Golem**(Luna)
• Diffuse Nebula Wyrm** (Cibryll)
• Dimension Naga(RKS)
• Dominate Fairy(RKS)
• Dominkarma Feyberry (C) (RKS)**
• Dustwing Leviathan (RKS)
• Dystopian Gothdrake Pandaborg**(RKS)
• Element Chimaera(RKS)
• Extinguish Melody
• Fabric Serpent
• Fallen Umbrageous Hydra**(Ci)
• Fierce Flame Flamingo**(Ci)
• Flame Flamingo** (EM)
• Flower Dragon (RKS)
• Galaxy Hussar (RKS)
• Gear Gargoyle**(Sarie)
• Gemstone Soul-Eater(RKS)
• Giant Demon Sponge**(Luna)
• Gigantic Brawn Boulder**(Sa)
• Gothdrake Pandaborg** (RKS)
• Hazard Tiger(RKS)
• Heavy Ironclad Dino**(Sarie)
• Hollow Amalgamation Horror** (C) (RKS)
• Hailfire Corvus (C)(RKS)
• Hailfire Kangaroo** (RKS)
• Heiroglyph Rune Squirrel** (Alice)
• High-Heel Agony Dancer** (Mia)
• Hot Phoenix Flower**(Cibryll)
• Hydra Flower Dragon (King 2.0)**
• Illegal Eagle(RKS)
• Insidious Mortar Crab**(Luna)
• Internebula Lamia** (C)(Luna)
• Interstice Lamia (Cibryll)
• Internetic Lamilass (C) (RKS)**
• Ironclad Dino (RKS)
• Jealousy Jerboa (RKS)
• Karma Berry (RKS)
• Ladder Serpent (RKS)
• Lethal Extinguish Melody** (Mia)
• Lost Ring (RKS)
• Lunar Motorbike Blossom**(Sarie)
• Mantis Dog (Cibryll)
• Mantisnore Dog**(C)(Sarie)
• Malice Chimaera**(C)(RKS)
• Malice Corvus (Cibryll)
• Malice Striker (L)(RKS)
• Melon Milligeddon Serpent(C)(Cibryll)
• Melon Millipede**(King 2.0)
• Menacing Hare** (RKS)
• Meteouroboros**(L)(Cibryll)
• Meteor Shark (RKS)
• Mortar Crab**(Luna)
• Mortarmeteor Shark (C)(Cibryll)
• Motorbike Blossom (Cibryll)
• Motorbike Flower Dragon (C)(King 2.0)
• Navbox Helicopter** (Cibryll)
• Nebula Wyrm
• Neurotoxic Sockpeople
• Nexus Dragon (RKS)
• Obvious Pirate (Cibryll)
• Organ Beast (RKS)
• Paradox Yokai (RKS)
• Pheonix Flower (RKS)
• Pheonix Flower Dragon (C) (RKS)
• Powerbug Grande**(RKS)
• Psychic Spook (RKS)
• Psycho Illegal Eagle**(Luna)
• Quaint Shadowclaw (RKS)
• Quill Paladin (RKS)
• Radiation Monkey (Cibryll)
• Raging Rilla** (Cibryll)
• Rampaging Raging Rilla**(Sarie)
• Rebellion Snow Phoenix**(Cibryll)
• Regal Hailfire Kangaroo**(RKS)
• Restrain Dominate Fairy** (Luna)
• Reverse Apocalypse Wolf**(RKS)
• Rocky Horror (RKS)
• Rune Squirrel (RKS)
• Searing Phoenix Flower Dragon** (Mia)
• Shining Lost Ring**(Sarie)
• Sky Rodent (RKS)
• Sky Rodent Plague**(Cibryll)
• Smelly Fabric Serpent** (Cibryll)
• Snail Fish-Escargoyster
** (RKS)

• Snore Boar** (Cibryll)
• Snow Flower Draco-Phoenix**(C)(Alice)
• Snowmotor Phoenix** (C)(Cibryll)
• Snow Phoenix (RKS)
• Snow Phoenix Flower* (C) (Alice)
• Solar Motorbike Blossom**(Alice)
• Songbird Phantom (RKS)
• Sparkling Gem Bug**(Ash)
• Spiral Galaxy Hussar**(RKS)
• Soulbike Blossom**(C)(RKS)
• Soul Falcon** (Mia)
• Soulquill Falcon**(Mia)
  
• Soulless Zodiac Wyvern**(Sarie)
• Scythe Beetle** (Cibryll)
• Tactical Mortar Crab**(RKS)
• Tainted Soul Falcon**(EM)
• Thunder Nyan (RKS)
• Turbochron Vehicle
• Twisted Interstice Lamia**(Cibryll)
• UB Bloom (Cibryll)
• Ultima Equine (Cibryll)
• Umbrageous Hydra (RKS)
• Umbrageous Nebula Hydravern(C) (RKS)**
• Undead Cherub (RKS)
• Upgraded Cybernetic Lass**(Cibryll)
• Unstable Psychic Spook** (Alice)
• Vampire Seraph (RKS)
• Voltic Thunder Nyan** (Sarie)
• Vicious Menacing Hare(RKS)
• Volcanic Brawn Boulder** (Sarie)
• Voltpocalypse Nyanwolf(C) (RKS)**
• Watermelon Centipede**(King 2.0)
• Wartorn Season (Cibryll)
• Weapon Elemental
• Xtreme Taipo(RKS)
• Xtreem Taipobug Grande (C)(Sarie)
• Yak Seal (RKS)
• Zodiac Wyvern (RKS)
(C)= Crossbreed
(L)= Leader
(Mia) = Empress Mia
(Cibryll) = Cibryll
(Alice) = Alice
(RKS) = RKS
(Sarie) = Sarie
(Luna) = Luna
(King (2.0))= Created by King (2.0)
** = Created after the Aeonian Night ended.

Bolded = Transdescendances[/list]