Replica of a Player?

What you want may be hard, but a simple clone can be done by creating a script inside ServerScriptService.

-- Get your current Animate script, copy and paste it into ServerStorage and make it a normal Server script

game.Players.PlayerAdded:Connect(function(p)
    p.CharacterAdded:Connect(function(c)
        wait(5)
        c.Archivable = true
        local c2 = c:Clone()
        c2.Parent = workspace
        c.Archivable = false
        c2.Name = c2.Name.."Clone"
        c2.Animate:Destroy()
        game.ServerStorage.Animate:Clone().Parent = c2
        spawn(function()
            local pos = c.HumanoidRootPart.Position
            while wait(.5) do
                spawn(function()
                    wait(5)
                    c2:FindFirstChildOfClass("Humanoid"):MoveTo(pos,c.HumanoidRootPart)
                    pos = c.HumanoidRootPart.Position
                end)
            end
        end)
    end)
end)

-- This is extremely scuffed but it's the simplest way possible.

Hope this helps!