To unlock this trophy you'll need to prestige any survivor/killer. To prestige a character you need to level them up to level 50. You can level-up your characters by spending bloodpoints in the bloodweb. Once your character reaches level 50, you'll find a skull icon in the middle of the bloodweb, click on this icon and you'll be asked if you're sure you want to prestige, say yes, and then boom, this trophy will unlock.