This is the full list of Season 4 Custom Sets and their names along with an ingame screenshot of how the set looks exc+15+28
Dragon Rider - BK
Ingnasent - BK
Corps - BK
Carnaks - BK
Mystic Dragon - BK/MG
Unreal - BK
Dodraking - BK
Iron Bangle - BK
Memento - BK
Braganons - BK
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Ghostly - SM
Dead Emperor - SM
Night Shade - SM
Forgeiss - SM
Venom Scale - SM
Black Velvet - SM
Poisonous - SM
Phoenix Warrior - SM
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Balverine - MG
Black Demon - MG
Rakkon - MG
Magma - MG
Mystic Dragon - MG/BK
Monster Slayer - MG
Dementum - MG
Bloody Warrior - MG
Samurais Honor - MG
Dungeon Guard - MG
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Royal - DL
Bloodbath - DL
Scorpion - DL
Hells Messenger - DL
Bornig - DL
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Lithium - Elf
Red Ashes - Elf
Death Bloom - Elf
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Krignar - SUM
Red Blossom Armor - SUM