Server Script:
script.Parent.Touched:Connect(function(hit)
local humanoid = hit.Parent:FindFirstChild("Humanoid")
if humanoid then
local Character = hit.Parent
local anim = game:GetService("ServerStorage").RandomStuff:FindFirstChild("RandomAnimation"):Clone()
local animTrack = Character.Humanoid:LoadAnimation(anim)
animTrack.Looped = true
animTrack:Play()
end
end)

1 comment
Playing Animations on the client replicate to the server. Also Humanoid:LoadAnimation() is deprecated.