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Champion of the 4 chaos gods sent to another world they can't Interact with that world but their champion can send or dedicate something to one of the gods .
Chaos Gods are Khorne, the god of warfare, rage and murder, Nurgle, the god of disease, despair and decay, Tzeentch, the god of change and sorcery and Slaanesh, the god of pleasure and excess.
Each God gives something to the champion to start with Slaanesh gives a body that can change its age at will(you could only take pleasure in certain things at certain ages),A self duplicating servant that follows the champions will(but it's very lustful and seeks pleasure in anything it does).
Khorne Gifts a shifting armor that has multiple weapons but it absorbs blood and Drives who wears it Into a blood frenzy the more the armor looks like a red beast.also also gifted two swords blessed by him,Slaanesh,and Nurgle One blade spreads an infection and One blade increases the pain of those cut when the blades are combined together increases both effects.
Nurgle gifts a body that absorbs and creates diseases and poisons(can't be killed by either just absorbs it).
Tzeentch Gifts A body capable of magic,A magic temple that is bigger on the inside than outside and can be completely customized by the champion, and a book giving the hunting prowess of a female yautja(predator vs alien) and all their hunting skills.