I can see my attack effects(Air pressure) but i can't see other players attack effects?

Hi! i probably new in Studio, so i have many problems, like that. When i press Z, it's should do animation&effect, but i can see only mine, and i can't see effects of other players. The same thing with other players. there is script:

repeat wait() until game.Players.LocalPlayer

repeat wait() until game.Players.LocalPlayer.Character

player = game.Players.LocalPlayer

mouse = player:GetMouse()

c = player.Character

anima = script:WaitForChild("Smash")

Enabled = true

mouse.KeyDown:connect(function(key)

key = key:lower()

if key == "z" then

    if not Enabled then return end

    Enabled = false

    local AnimaStart = c.Humanoid:LoadAnimation(anima)

    AnimaStart:Play()

    local q = Instance.new("Part", c)

    q.Shape = "Block"

    q.Anchored = true

    q.CanCollide = false

    q.BottomSurface = "Smooth"

    q.TopSurface = "Smooth"

    q.Material = "Glass"

    q.Transparency = 0.3

    q.BrickColor = BrickColor.new("Ghost grey")

    q.Size = Vector3.new(5,5,25)

    q.CFrame = c.Torso.CFrame *CFrame.new(1.3,0,-15)

    local u = Instance.new("SpecialMesh")

    u.MeshType = "Sphere"

    u.Parent = q


    for i = 1, 20 do
        q.Size = q.Size +Vector3.new(3,3,5)
        wait()
        q.Transparency = q.Transparency +0.1
        q.Size = q.Size +Vector3.new(3,3,5)
        wait()
        q.Transparency = q.Transparency +0.1
        q.Size = q.Size +Vector3.new(3,3,5)
        wait()
        q.Transparency = q.Transparency +0.1
        q.Size = q.Size +Vector3.new(7,7,10)
        wait()
    end
wait(5)
q:Destroy()
Enabled = true
end

end)