shield

local plr = game.Players.LocalPlayer
local mouse = plr:GetMouse()
local chr = plr.Character or plr.CharacterAdded:wait()

local shield = Instance.new("Part")
shield.Anchored = true
shield.Transparency = .8
shield.CanCollide = false
shield.FormFactor = "Custom"
shield.Size = Vector3.new(.2,.2,.2)
shield.BottomSurface = "Smooth"
shield.TopSurface = "Smooth"

local mesh = Instance.new("SpecialMesh",shield)
mesh.MeshType = "Sphere"

mouse.KeyDown:connect(function(key)
	if key == 't' then
		chr.Humanoid.WalkSpeed = 0
		clone = shield:Clone()
		clone.Parent = workspace
		clone.CFrame = chr.Torso.CFrame

		clone.Touched:connect(function(p)
			if p and p.ClassName == "Part" and p.Locked == false then
				p:Destroy()
			end
		end)
		for i = 1,30 do
			game:GetService('RunService').RenderStepped:wait()
			clone.Size = clone.Size + Vector3.new(.2,.2,.2)
			clone.CFrame = chr.Torso.CFrame
		end
	end
end)

mouse.KeyUp:connect(function(key)
	if key == 't' then
		chr.Humanoid.WalkSpeed = 16
		for i = 1,30 do
			game:GetService('RunService').RenderStepped:wait()
			clone.Size = clone.Size - Vector3.new(.2,.2,.2)
			clone.CFrame = chr.Torso.CFrame
		end
		clone:Destroy()
	end
end)